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Monitoring for a network
by Eric Martin Oct. 24, 2012

Oct. 24, 2012

I'm trying to get a better handle on what's happening on my network at work. I'm currently using Nagios to monitor the big things (Server health, switch health, etc), but I'd like more granular statistics (how much data is coming and going, are any links saturated, etc). A quick glance shows that MRTG, Cricket, and RRD are good things to start playing with. I'm staring to play around with MRTG, but I'm hearing rumors of scalability issues and I don't want to get deep into MRTG if I should be putting resources elsewhere. A quick sketch of the network is a few internet connections, our router, and a few switches for networking along with a few switches for VoIP as well as our PBX. I don't want to monitor every port all the time, I instead want to monitor the uplinks of the switches to have a good idea, and look at the switch if something looks awry. My question to the group is, what do you use / recommend, and do you have anything that sticks out in your head about any of these packages (good or bad)? Thanks in advance, -- Eric Martin

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I presume we're meeting the 10th of Oct?
by Tim Keller Oct. 10, 2012

Oct. 10, 2012

Hey Gang! I presume we're having a meeting on the 10th? Does anybody have a topic/idea? Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Possible problem with demo tomorrow...
by Tim Keller Oct. 9, 2012

Oct. 9, 2012

There's that old adage, when it rains it pours... Work critical stuff has made it hard for me to focus on getting the demo to work completely. I can do two things... 1. I can do my presentation without the demo. 2. I can do my presentation next month, giving me time to get the demo working right, etc. What do you guys want me to do? Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

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Re: [Wlug] help diagnosing PC issue: suspect power supply
by joel d Oct. 9, 2012

Oct. 9, 2012

> From: Brett Russ <bruss(a)alum.wpi.edu> > Subject: Re: [Wlug] help diagnosing PC issue: suspect power supply > To: Worcester Linux Users Group <wlug(a)mail.wlug.org> > Message-ID: > <CAGcHgFN4odSRHmS=jjYuvEDy1myRMOgKEYxy0bWu9e4-3V9i7A(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On Mon, Oct 1, 2012 at 7:57 AM, Brett Russ <bruss(a)alum.wpi.edu> wrote: >> On Sat, Sep 29, 2012 at 6:19 PM, Chuck Anderson <cra(a)wpi.edu> wrote: >>> I agree that the power supply is suspect. You can measure the voltage >> >>> Alternatively, it may be easier to just try a replacement. >> >> I have a new one on the way. I'll reply here with the results. > > Well, brand new power supply and the system behaves the same > problematic way as before. > > So next try is the memory, as another list reply suggested. I've had > memtest86 running against both DIMMs for 47+ hours and counting, 70 > total passes so far, and 0 errors. Remember I'd already tried > removing first one DIMM, then the other, and the problem repro'd > either way. So by these measures it'd seem the memory is OK? I know > some mem problems take days to show up so I'll just leave this running > for a couple more days anyway. > > Not much more I can do here, as I've seen repros with most everything > else unplugged so I'm now thinking it must be the motherboard. > Perhaps I will try reseating the CPU--haven't done that yet. > > Recall the system is having trouble POST'ing: it hangs at various > points before BIOS POST completes, i.e. I don't get a confirming > 'beep' at end of POST and in some cases the monitor won't wake, other > cases the BIOS splash screen stays splashed, etc. The full original > email is here: > http://mail.wlug.org/pipermail/wlug/2012-September/008059.html > > Anyway, if anyone has other ideas here I'd welcome them. > > Thanks again, > Brett > Hi Brett, You sound pretty convinced this is a PC hardware problem. I think I missed the earlier discussion, but how exactly do you know this is hardware at fault (vs anything not hardware at fault) and how certain are you? Have you tried running a "bootable operating system" via a CD or DVD drive as a diagnostic step (will it boot Ubuntu or another from the optical drive)? If CD/DVD boot is out, there are thumb drive bootable images also. I would start here and rule out everything that is not hardware. As a test, if a different O.S. than Ubuntu 11.10, runs well (except slower) from an optical drive, your hardware is likely fine (and instead have an Ubuntu 11 or app or driver problem). Step only takes a few minutes and is very telling (and well worth it IMHO). This step will likely tell you if it is hardware vs everything else. So if you can assure yourself it is hardware 100% ... All the PC hardware I have worked on in the past years is pretty much self diagnosing/reporting. In this case, your job if you choose to accept it, is to "read and decipher what the motherboard is telling you at boot up". To speak the language of your motherboard, you need to check for any of the following information: External to case, Rear facing LEDs (often have many and are multi-colored) On motherboard LEDs, viewable only inside Beep tones heard at boot up Error or other messages displayed quickly at bootup You need to read the "diagnostics" page of your model's specific PC or motherboard vendor's manual for this specific PC/motherboard to decipher what it is seeing at bootup (based upon lights/beeps/LEDS/etc). Sounds like: You either have two bad power supplies, or this is not the problem. You could have bad memory DIMM(s) that do pass MemTest86 (these test help, but I have seen them pass on bad chips it is a bit of a long shot though). You have changed the motherboard battery and flashed the latest BIOS. Don't rule out a new BIOS being a problem (glitch in install or wrong one or BIOS version problem) You still have a problem that could be hardware or not. You could have an Ubuntu 11 playing well with your motherboard, thus a test of another OS and version... If it was my PC I would next rule out the following in this order: Test and work on whatever the motherboard manufacturer is telling you via lights/beeps/LEDs/boot messages. Ubuntu V11.10, not because I don't like it but trying something else for 15 minutes could tell you something. The current version of CMOS you flashed to the motherboard

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Announce: WLUG Meeting Wed 10/10 7PM: OpenStack
by Chuck Anderson Oct. 9, 2012

Oct. 9, 2012

Hi folks, The next Worcester Linux Users' Group (WLUG) monthly meeting will be held on Wednesday, October 10, at 7PM. The location will be WPI Higgins Labs, room 230 (computer lab). Wednesday, October 10, 7:00 - 9:00 PM WPI Higgins Labs, room 230 (computer lab) WLUG member Tim Keller will be giving a presentation on OpenStack, open source software for building private and public clouds. Afterwards, we will go out for pizza and continue our discussions. See you there, Chuck President, Worcester Linux Users' Group http://www.wlug.org/

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Re: [Wlug] Wlug Digest, Vol 107, Issue 13
by Karl Lind Oct. 1, 2012

Oct. 1, 2012

Hi Brett, First off, CMOS checksum errors during boot refer to MEMORY not the BIOS. Also almost all your symptoms point to a possible memory issue. Do Chuck's stuff to verify that you don't have a power drain that's causing a memory issue. Get a Memory Test utility and find out which DIMM is causing the problem. Carefully remove the DIMM and using a #2 pencil eraser, clean the contacts and replace the DIMM (The rubber removes oxidation that prevents contact) and don't forget to keep grounded! (You, not the DIMM). Cheers Karl On Sun, Sep 30, 2012 at 12:00 PM, <wlug-request(a)mail.wlug.org> wrote: > Send Wlug mailing list submissions to > wlug(a)mail.wlug.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.wlug.org/mailman/listinfo/wlug > or, via email, send a message with subject or body 'help' to > wlug-request(a)mail.wlug.org > > You can reach the person managing the list at > wlug-owner(a)mail.wlug.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Wlug digest..." > > > Today's Topics: > > 1. help diagnosing PC issue: suspect power supply (Brett Russ) > 2. Re: help diagnosing PC issue: suspect power supply > (Chuck Anderson) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 29 Sep 2012 14:32:05 -0400 > From: Brett Russ <bruss(a)alum.wpi.edu> > Subject: [Wlug] help diagnosing PC issue: suspect power supply > To: Worcester Linux Users Group <wlug(a)mail.wlug.org> > Message-ID: > <CAGcHgFNRd2jLrywD977a0jZChqEREnNBt529abY0= > fh2OU5FAA(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > > I'm trying to diagnose a home built PC running fine since 2007 but lately > starting to act odd. Here are the system specs: > Intel Core 2 Duo 1.8GHz cpu > Asus P5B Deluxe mobo > Nvidia 7900GS graphics card > Kingston KHX6400 2x1GB DDR2 memory > Sparkle ATX 400W power supply > 3x 1TB SATA HDDs > 1x SATA DVD-RW > > $ uname -a > Linux spider 3.0.0-25-generic #41-Ubuntu SMP Mon Aug 13 17:58:59 UTC 2012 > x86_64 x86_64 x86_64 GNU/Linux > > $ cat /etc/*release > DISTRIB_ID=Ubuntu > DISTRIB_RELEASE=11.10 > DISTRIB_CODENAME=oneiric > DISTRIB_DESCRIPTION="Ubuntu 11.10" > > $ uname -a > Linux spider 3.0.0-25-generic #41-Ubuntu SMP Mon Aug 13 17:58:59 UTC 2012 > x86_64 x86_64 x86_64 GNU/Linux > > > What recently changed: > > i) replaced monitor, last one died > > ii) (carefully) vacuumed the dust from inside. Kept hand on case chassis, > didn't touch any PCB/chips, etc. > > > Here are the symptoms: > > 1) first started seeing BIOS claims of bad CMOS checksum at boot time. > Immediately suspected the CMOS battery, replaced it and reset CMOS settings > but I continue to see this. This is the one symptom that I can't yet > place, unless it's simply a bad replacement battery. > > 2) next started seeing the monitor fail to wake up after entering power > save > > 3) powering on the PC shows issues: > > 3a) often the monitor won't wake at boot > > 3b) the bios often doesn't finish POST, gets stuck at splash screen > > 3c) bios settings often don't survive across power cycles (possibly related > to #1--battery issue?) > > 3d) bios doesn't always give the affirmative beep (likely same symptom as > 3a, 3b) > > 3e) a cold power on or reset can take several "tries" before the system > stays on. I.e. fans will spin up, then spin down, one to three times > before staying on. When this happens it's pretty much guaranteed that it > won't boot successfully. > > 4) system will freeze to user input while up. I.e. once I get Linux > booted, as long as I disable monitor power save it will stay running for a > while, but I observed it stopped responding to KB and mouse input earlier > this morning. > > > Here's what I've tried: > > a) reseated both DIMMs, reproduced issues; tried with just one DIMM, > repro'd; tried other DIMM, repro'd > > b) reseated graphics card, repro'd; removed graphics card (now headless), > repro'd problem 3e > > c) reseated CMOS battery (CR2032), repro'd > > d) pulled all non-essential cables and internal connections, including > power and SATA cables from all drives, repro'd > > e) updated BIOS to latest version, repro'd > > > Unfortunately I don't have another ATX power supply to try, but was > thinking of buying one. I might also try an old PCI video card, but I > suspect due to repro (b) above that it's not the cause. > > Anyone have any other insights or agree it sounds like a bad PS? I still > can't explain symptom (1), will probably buy another battery to be sure. > Five years seems like an old PC, but I'm not a gamer so this suits me fine. > > > Thanks, > Brett > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://mail.wlug.org/pipermail/wlug/attachments/20120929/8959d06a/attachmen… > > ------------------------------ > > Message: 2 > Date: Sat, 29 Sep 2012 18:19:47 -0400 > From: Chuck Anderson <cra(a)WPI.EDU> > Subject: Re: [Wlug] help diagnosing PC issue: suspect power supply > To: Worcester Linux Users Group <wlug(a)mail.wlug.org> > Message-ID: <20120929221947.GH12327(a)angus.ind.WPI.EDU> > Content-Type: text/plain; charset=us-ascii > > On Sat, Sep 29, 2012 at 02:32:05PM -0400, Brett Russ wrote: > > Sparkle ATX 400W power supply > > Anyone have any other insights or agree it sounds like a bad PS? I still > > can't explain symptom (1), will probably buy another battery to be sure. > > Five years seems like an old PC, but I'm not a gamer so this suits me > fine. > > I agree that the power supply is suspect. You can measure the voltage > on a spare power supply hard drive connector, there should be 12v from > black to yellow, and 5v from black to red. If that checks out, you > should measure from the motherboard ATX connector as some of the other > voltages may be out of spec. You can find the standard ATX pinouts > and voltages online. Finally, you can test with the power supply > completely disconnected from the PC. Again, you can find instructions > online for how to do that, as it requires a jumper wire for the power > supply to power on. > > Alternatively, it may be easier to just try a replacement. > > > ------------------------------ > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > > > End of Wlug Digest, Vol 107, Issue 13 > ************************************* >

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Test needed on declared-ill Modem. Who has a lab?
by E Johnson Sept. 28, 2012

Sept. 28, 2012

Umm. Non-happy camper. ISP things have changed here, without me being informed. Recently (2 days ago) my modem started rebooting every little while. Zillions of T3 & T4 timouts in the modem log, Signal lavels were perfect when it was online. I own this thing, a Motorola SB6120 purchased late June 2010. It has not been abused. I am in Woosta & we all know the ISP available here. 2 techs showed up mid-morning, to diagnose and fix this issue. One guy stood there watching; the other guy "did stuff." They checked the signal levels on incoming line from the box connected to the pole our back, and declared my moden Dying. They talked to each other (not me) & seemed to think I was Granny-in-a-Box, until they let me say more than one sentence. These guys also confessed that since July 202, Ch4rter does not "allow" customers to own/run their own modems. Their consolation prize is that they don't charge modem rental fees any more. (it's not on the bill, anyway, FWIW). They mumbled some other mumbo jumbo and fled 5 seconds after they learned I have my own router too, & didn't care if the modem and router were yet in communication. They just said "better reboot" and they "no longer" service "wireless" --which I am not running except when certain visitors appear. I think they meant they don't diagnose routers, which has always been the policy, and which is fine. Internal LAN issues aren't their problem. So now I have a modem which may or may not be sick, but no way to test it to make sure. Is there anyone here who can take a look at this thing & test to see if it's Really Dying, or if Ch4rter deaded it with their latest firmware revision of their firmware & policy change in July 2012? An interesting meeting theme sometime might be how to get the Verizon FIOS in Worcester. Several years ago I watched Verizon trucks & Verizon moles installing their fiber optics in manholes all over town. Ch4rter is running on Verizon's infrastructure. Ch4rter internet has been working better since then, but we're still locked out of the option to use verizon. Is this a topic of interest to anyone? If so, I'll lead the discussion and even buy the Pizz4. To me, this is a Large Pizza problem. Another interesting but probably futile discussion might center around why we have suddenly been deprived of the ability to watch the behavior and effectiveness of our modems, which serve internet coming from our ISP.. I was not informed of this -- was anyone who is just a 'regular' customer? Meanwhile, if anyone has a test lab or whatever, where they can test my declared-dead modem, please let me know. Otherwise it's probably a giveaway, or another piece of Landfill Fodder. I can bring to a meeting & can wait for results. Thanks & happy pizzaz, Liz J

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Need recommendation on UPs for small home network.
by E Johnson Sept. 23, 2012

Sept. 23, 2012

Today and the other day we discussed my issues with a modem declared-dead by twin techs from my ISP. Part of that problem may have been caused by bad elex service here. I need a recommendation for a UPS to use here. We have dirty elex here in this 112 year-old central Worcester house, & inadequate amperage to my floor (top floor garret). Refrig runs on same circuit as my computers do. Lights dim when something downstairs also turns on, probably a microwave oven and/or a TV. This won't be fixed any time soon unless the landlady suddenly becomes a benefactress of the Gate$ Foundation, which will never happen. I could sometime get an electrician in here to add a suitable circuit for my floor, but it would be faster & better just to get an UPS, whether or not the elex here is ever upgraded. UPS here would only need to run max 2 PCs plus their monitors, one modem and router & a light bulb or two. Really needs to run only one. The primary PC here is mine, which has a 450W power supply running a 95W AMD FX4100 quad (bulldozer) no vid card. Antec Sonata II case has 2 fans. Mobo is http://www.newegg.com/Product/Product.aspx?Item=N82E16813157292 Built June 2012. Works great. The other PC is a few years older; similar, but usually don't care if it shuts down in power outage or not. I need UPS to beep audibly in a power outage, but only need maybe 5 minutes to light a candle, go to office, save whatever is not saved & Halt. Otherwise just need UPS to smooth out the fluctuating elex here. I'm not clear from newegg or any vendor, which kind of UPS I need to get for this small home setup. Please would someone recommend what UPS would be suitable here, but not overkill. Thanks extremely, Liz J

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Re: [Wlug] Test needed on declared-ill Modem. Who has a lab? -- + update from ISP
by E Johnson Sept. 22, 2012

Sept. 22, 2012

Thanks, Karl. This makes sense. Why didn't I think of that! We have inadequate elex here which dips & dims lights frequently. Had sudden power outages a few times, including one very recently. I am not piping the modem logs anywhere; only check this if I notice an obvious problem. Results: Non available. Case (Motorola SB 6120) has only 2 screws, hex, 2 different sizes. No problem. Backplate then comes off & that's it. Nothing else to undo except whet seem to be clips, but we have no prybar tiny & thin enough to pry up these clip things. Case appears uncrackable, execpt maybe by dropping it from an airplane onto solid concrete. However. If it's only the power supply, I could test this by simply replacing the wall wart with an equivalent one from anywhere. Then I'd have to get the ISP to reprovision it, then watch to see if it worked any better after that. I do have an update from Ch4rter business office, which is relevant to my original beef with this ISP. Yesterday afternoon, I followed up by calling the business office, to ask why they changed their policy on what networking components their customers can or cannot own and administer themselves. The last person I spoke with said I am "grandfathered-in" to be allowed to own & run my own modem, since my account was opened before July, 2012 when the new poilcy was instituted (I'm a customer since there was something other than dial-up). Biz office says these techs who came to see me Thursday simply had "inadequate training" or "incorrect information" from their own supervisors. Both techs did look not older than about 3 days over 19. For the trouble call, I was promised a sup-tech & maybe one of these was, but only sup-ing the second guy how to open cardboard boxes of modems, smile at geekly grannies, & maybe how to drive the van. This modem is not in warranty & no longer manufactured (mine 2+ years old). But Motorola tech support confirmed that any old power supply 12V, 0.76A would run it. I'll borrow a power supply from somewhere, then try this thing one more time here before Responsibly Disposing of it by donating to a worthy friend's parts bin. Thanks very much, Liz J On 21 September 2012 21:52, Karl Lind <electrolind(a)gmail.com> wrote: > Sounds more like the power supply is taking it's time to die. As the power > level dips thats where your errors/reboots are popping up. Easiest thing to > verify is 1.) Turn off the modem and unplug. 2.) Remove case and inspect > the board. 3.) If the board's solder connections look like there are not > good connections ANYWHERE on the board then you probably have a bad solder > issue, if the solder looks good, it's probably a power supply on the board > problem which is a chip. 4.) Post results > > Karl Lind > > On Fri, Sep 21, 2012 at 12:00 PM, <wlug-request(a)mail.wlug.org> wrote: > >> Send Wlug mailing list submissions to >> wlug(a)mail.wlug.org >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://mail.wlug.org/mailman/listinfo/wlug >> or, via email, send a message with subject or body 'help' to >> wlug-request(a)mail.wlug.org >> >> You can reach the person managing the list at >> wlug-owner(a)mail.wlug.org >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Wlug digest..." >> >> >> Today's Topics: >> >> 1. Test needed on declared-ill Modem. Who has a lab? (E Johnson) >> 2. Re: Test needed on declared-ill Modem. Who has a lab? (E Johnson) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Thu, 20 Sep 2012 19:11:17 -0400 >> From: E Johnson <iris.gates(a)gmail.com> >> Subject: [Wlug] Test needed on declared-ill Modem. Who has a lab? >> To: Worcester Linux Users Group <wlug(a)mail.wlug.org> >> Message-ID: >> < >> CABmZTj0aYBHVUR83fPcMBxxpu6-YhfoPDo5G9wB1pdBAAQWwHA(a)mail.gmail.com> >> Content-Type: text/plain; charset="iso-8859-1" >> >> Umm. Non-happy camper. ISP things have changed here, without me being >> informed. Recently (2 days ago) my modem started rebooting every little >> while. Zillions of T3 & T4 timouts in the modem log, Signal lavels were >> perfect when it was online. I own this thing, a Motorola SB6120 purchased >> late June 2010. It has not been abused. >> >> I am in Woosta & we all know the ISP available here. 2 techs showed up >> mid-morning, to diagnose and fix this issue. One guy stood there watching; >> the other guy "did stuff." They checked the signal levels on incoming line >> from the box connected to the pole our back, and declared my moden Dying. >> They talked to each other (not me) & seemed to think I was >> Granny-in-a-Box, >> until they let me say more than one sentence. >> >> These guys also confessed that since July 202, Ch4rter does not "allow" >> customers to own/run their own modems. Their consolation prize is that >> they >> don't charge modem rental fees any more. (it's not on the bill, anyway, >> FWIW). They mumbled some other mumbo jumbo and fled 5 seconds after they >> learned I have my own router too, & didn't care if the modem and router >> were yet in communication. They just said "better reboot" and they "no >> longer" service "wireless" --which I am not running except when certain >> visitors appear. I think they meant they don't diagnose routers, which has >> always been the policy, and which is fine. Internal LAN issues aren't >> their >> problem. >> >> So now I have a modem which may or may not be sick, but no way to test it >> to make sure. Is there anyone here who can take a look at this thing & >> test >> to see if it's Really Dying, or if Ch4rter deaded it with their latest >> firmware revision of their firmware & policy change in July 2012? >> >> An interesting meeting theme sometime might be how to get the Verizon FIOS >> in Worcester. Several years ago I watched Verizon trucks & Verizon moles >> installing their fiber optics in manholes all over town. Ch4rter is >> running >> on Verizon's infrastructure. Ch4rter internet has been working better >> since >> then, but we're still locked out of the option to use verizon. Is this a >> topic of interest to anyone? If so, I'll lead the discussion and even buy >> the Pizz4. To me, this is a Large Pizza problem. >> >> Another interesting but probably futile discussion might center around why >> we have suddenly been deprived of the ability to watch the behavior and >> effectiveness of our modems, which serve internet coming from our ISP.. I >> was not informed of this -- was anyone who is just a 'regular' customer? >> >> Meanwhile, if anyone has a test lab or whatever, where they can test my >> declared-dead modem, please let me know. Otherwise it's probably a >> giveaway, or another piece of Landfill Fodder. I can bring to a meeting & >> can wait for results. >> >> Thanks & happy pizzaz, >> Liz J >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> http://mail.wlug.org/pipermail/wlug/attachments/20120920/8789bb41/attachmen… >> >> ------------------------------ >> >> Message: 2 >> Date: Thu, 20 Sep 2012 19:31:59 -0400 >> From: E Johnson <iris.gates(a)gmail.com> >> Subject: Re: [Wlug] Test needed on declared-ill Modem. Who has a lab? >> To: Worcester Linux Users Group <wlug(a)mail.wlug.org> >> Message-ID: >> < >> CABmZTj3Ghp2GHUiWHtGtbBN5NVo0HQKzkrWcvxNngP5_q2hcGQ(a)mail.gmail.com> >> Content-Type: text/plain; charset="iso-8859-1" >> >> PS: This evening, Ch4rter Billing has deleted the upcoming service charge >> for this morning's tech call. Amazing how it took 2 guys to check line >> levels, then hang one moden where my other modem was, + plug in one coax & >> one wall wart , then make 30-sec call to the office to get their >> repacement >> modem provisioned & watch for blinking green lights. 2 guys. >> If this happens to you (they discontinued your router & required you to >> use >> theirs), don't eat the bill. >> it does work fine, FWIW, but not impressed. >> --EJ >> >> On 20 September 2012 19:11, E Johnson <iris.gates(a)gmail.com> wrote: >> >> > Umm. Non-happy camper. ISP things have changed here, without me being >> > informed. Recently (2 days ago) my modem started rebooting every little >> > while. Zillions of T3 & T4 timouts in the modem log, Signal lavels were >> > perfect when it was online. I own this thing, a Motorola SB6120 >> purchased >> > late June 2010. It has not been abused. >> > >> > I am in Woosta & we all know the ISP available here. 2 techs showed up >> > mid-morning, to diagnose and fix this issue. One guy stood there >> watching; >> > the other guy "did stuff." They checked the signal levels on incoming >> line >> > from the box connected to the pole our back, and declared my moden >> Dying. >> > They talked to each other (not me) & seemed to think I was >> Granny-in-a-Box, >> > until they let me say more than one sentence. >> > >> > These guys also confessed that since July 202, Ch4rter does not "allow" >> > customers to own/run their own modems. Their consolation prize is that >> they >> > don't charge modem rental fees any more. (it's not on the bill, anyway, >> > FWIW). They mumbled some other mumbo jumbo and fled 5 seconds after they >> > learned I have my own router too, & didn't care if the modem and router >> > were yet in communication. They just said "better reboot" and they "no >> > longer" service "wireless" --which I am not running except when certain >> > visitors appear. I think they meant they don't diagnose routers, which >> has >> > always been the policy, and which is fine. Internal LAN issues aren't >> their >> > problem. >> > >> > So now I have a modem which may or may not be sick, but no way to test >> it >> > to make sure. Is there anyone here who can take a look at this thing & >> test >> > to see if it's Really Dying, or if Ch4rter deaded it with their latest >> > firmware revision of their firmware & policy change in July 2012? >> > >> > An interesting meeting theme sometime might be how to get the Verizon >> FIOS >> > in Worcester. Several years ago I watched Verizon trucks & Verizon moles >> > installing their fiber optics in manholes all over town. Ch4rter is >> running >> > on Verizon's infrastructure. Ch4rter internet has been working better >> since >> > then, but we're still locked out of the option to use verizon. Is this a >> > topic of interest to anyone? If so, I'll lead the discussion and even >> buy >> > the Pizz4. To me, this is a Large Pizza problem. >> > >> > Another interesting but probably futile discussion might center around >> why >> > we have suddenly been deprived of the ability to watch the behavior and >> > effectiveness of our modems, which serve internet coming from our ISP.. >> I >> > was not informed of this -- was anyone who is just a 'regular' customer? >> > >> > Meanwhile, if anyone has a test lab or whatever, where they can test my >> > declared-dead modem, please let me know. Otherwise it's probably a >> > giveaway, or another piece of Landfill Fodder. I can bring to a meeting >> & >> > can wait for results. >> > >> > Thanks & happy pizzaz, >> > Liz J >> > >> > >> > >> > >> > >> > >> > >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> http://mail.wlug.org/pipermail/wlug/attachments/20120920/8a927db4/attachmen… >> >> ------------------------------ >> >> _______________________________________________ >> Wlug mailing list >> Wlug(a)mail.wlug.org >> http://mail.wlug.org/mailman/listinfo/wlug >> >> >> End of Wlug Digest, Vol 107, Issue 5 >> ************************************ >> > > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > >

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Re: [Wlug] Wlug Digest, Vol 107, Issue 5
by Karl Lind Sept. 22, 2012

Sept. 22, 2012

Sounds more like the power supply is taking it's time to die. As the power level dips thats where your errors/reboots are popping up. Easiest thing to verify is 1.) Turn off the modem and unplug. 2.) Remove case and inspect the board. 3.) If the board's solder connections look like there are not good connections ANYWHERE on the board then you probably have a bad solder issue, if the solder looks good, it's probably a power supply on the board problem which is a chip. 4.) Post results Karl Lind On Fri, Sep 21, 2012 at 12:00 PM, <wlug-request(a)mail.wlug.org> wrote: > Send Wlug mailing list submissions to > wlug(a)mail.wlug.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.wlug.org/mailman/listinfo/wlug > or, via email, send a message with subject or body 'help' to > wlug-request(a)mail.wlug.org > > You can reach the person managing the list at > wlug-owner(a)mail.wlug.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Wlug digest..." > > > Today's Topics: > > 1. Test needed on declared-ill Modem. Who has a lab? (E Johnson) > 2. Re: Test needed on declared-ill Modem. Who has a lab? (E Johnson) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 20 Sep 2012 19:11:17 -0400 > From: E Johnson <iris.gates(a)gmail.com> > Subject: [Wlug] Test needed on declared-ill Modem. Who has a lab? > To: Worcester Linux Users Group <wlug(a)mail.wlug.org> > Message-ID: > < > CABmZTj0aYBHVUR83fPcMBxxpu6-YhfoPDo5G9wB1pdBAAQWwHA(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Umm. Non-happy camper. ISP things have changed here, without me being > informed. Recently (2 days ago) my modem started rebooting every little > while. Zillions of T3 & T4 timouts in the modem log, Signal lavels were > perfect when it was online. I own this thing, a Motorola SB6120 purchased > late June 2010. It has not been abused. > > I am in Woosta & we all know the ISP available here. 2 techs showed up > mid-morning, to diagnose and fix this issue. One guy stood there watching; > the other guy "did stuff." They checked the signal levels on incoming line > from the box connected to the pole our back, and declared my moden Dying. > They talked to each other (not me) & seemed to think I was Granny-in-a-Box, > until they let me say more than one sentence. > > These guys also confessed that since July 202, Ch4rter does not "allow" > customers to own/run their own modems. Their consolation prize is that they > don't charge modem rental fees any more. (it's not on the bill, anyway, > FWIW). They mumbled some other mumbo jumbo and fled 5 seconds after they > learned I have my own router too, & didn't care if the modem and router > were yet in communication. They just said "better reboot" and they "no > longer" service "wireless" --which I am not running except when certain > visitors appear. I think they meant they don't diagnose routers, which has > always been the policy, and which is fine. Internal LAN issues aren't their > problem. > > So now I have a modem which may or may not be sick, but no way to test it > to make sure. Is there anyone here who can take a look at this thing & test > to see if it's Really Dying, or if Ch4rter deaded it with their latest > firmware revision of their firmware & policy change in July 2012? > > An interesting meeting theme sometime might be how to get the Verizon FIOS > in Worcester. Several years ago I watched Verizon trucks & Verizon moles > installing their fiber optics in manholes all over town. Ch4rter is running > on Verizon's infrastructure. Ch4rter internet has been working better since > then, but we're still locked out of the option to use verizon. Is this a > topic of interest to anyone? If so, I'll lead the discussion and even buy > the Pizz4. To me, this is a Large Pizza problem. > > Another interesting but probably futile discussion might center around why > we have suddenly been deprived of the ability to watch the behavior and > effectiveness of our modems, which serve internet coming from our ISP.. I > was not informed of this -- was anyone who is just a 'regular' customer? > > Meanwhile, if anyone has a test lab or whatever, where they can test my > declared-dead modem, please let me know. Otherwise it's probably a > giveaway, or another piece of Landfill Fodder. I can bring to a meeting & > can wait for results. > > Thanks & happy pizzaz, > Liz J > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://mail.wlug.org/pipermail/wlug/attachments/20120920/8789bb41/attachmen… > > ------------------------------ > > Message: 2 > Date: Thu, 20 Sep 2012 19:31:59 -0400 > From: E Johnson <iris.gates(a)gmail.com> > Subject: Re: [Wlug] Test needed on declared-ill Modem. Who has a lab? > To: Worcester Linux Users Group <wlug(a)mail.wlug.org> > Message-ID: > < > CABmZTj3Ghp2GHUiWHtGtbBN5NVo0HQKzkrWcvxNngP5_q2hcGQ(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > PS: This evening, Ch4rter Billing has deleted the upcoming service charge > for this morning's tech call. Amazing how it took 2 guys to check line > levels, then hang one moden where my other modem was, + plug in one coax & > one wall wart , then make 30-sec call to the office to get their repacement > modem provisioned & watch for blinking green lights. 2 guys. > If this happens to you (they discontinued your router & required you to use > theirs), don't eat the bill. > it does work fine, FWIW, but not impressed. > --EJ > > On 20 September 2012 19:11, E Johnson <iris.gates(a)gmail.com> wrote: > > > Umm. Non-happy camper. ISP things have changed here, without me being > > informed. Recently (2 days ago) my modem started rebooting every little > > while. Zillions of T3 & T4 timouts in the modem log, Signal lavels were > > perfect when it was online. I own this thing, a Motorola SB6120 > purchased > > late June 2010. It has not been abused. > > > > I am in Woosta & we all know the ISP available here. 2 techs showed up > > mid-morning, to diagnose and fix this issue. One guy stood there > watching; > > the other guy "did stuff." They checked the signal levels on incoming > line > > from the box connected to the pole our back, and declared my moden Dying. > > They talked to each other (not me) & seemed to think I was > Granny-in-a-Box, > > until they let me say more than one sentence. > > > > These guys also confessed that since July 202, Ch4rter does not "allow" > > customers to own/run their own modems. Their consolation prize is that > they > > don't charge modem rental fees any more. (it's not on the bill, anyway, > > FWIW). They mumbled some other mumbo jumbo and fled 5 seconds after they > > learned I have my own router too, & didn't care if the modem and router > > were yet in communication. They just said "better reboot" and they "no > > longer" service "wireless" --which I am not running except when certain > > visitors appear. I think they meant they don't diagnose routers, which > has > > always been the policy, and which is fine. Internal LAN issues aren't > their > > problem. > > > > So now I have a modem which may or may not be sick, but no way to test it > > to make sure. Is there anyone here who can take a look at this thing & > test > > to see if it's Really Dying, or if Ch4rter deaded it with their latest > > firmware revision of their firmware & policy change in July 2012? > > > > An interesting meeting theme sometime might be how to get the Verizon > FIOS > > in Worcester. Several years ago I watched Verizon trucks & Verizon moles > > installing their fiber optics in manholes all over town. Ch4rter is > running > > on Verizon's infrastructure. Ch4rter internet has been working better > since > > then, but we're still locked out of the option to use verizon. Is this a > > topic of interest to anyone? If so, I'll lead the discussion and even buy > > the Pizz4. To me, this is a Large Pizza problem. > > > > Another interesting but probably futile discussion might center around > why > > we have suddenly been deprived of the ability to watch the behavior and > > effectiveness of our modems, which serve internet coming from our ISP.. I > > was not informed of this -- was anyone who is just a 'regular' customer? > > > > Meanwhile, if anyone has a test lab or whatever, where they can test my > > declared-dead modem, please let me know. Otherwise it's probably a > > giveaway, or another piece of Landfill Fodder. I can bring to a meeting & > > can wait for results. > > > > Thanks & happy pizzaz, > > Liz J > > > > > > > > > > > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://mail.wlug.org/pipermail/wlug/attachments/20120920/8a927db4/attachmen… > > ------------------------------ > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > > > End of Wlug Digest, Vol 107, Issue 5 > ************************************ >

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