Linksys released the WRT54GL in 2005 to support third-party firmware based on Linux, after the original WRT54G line was switched from Linux to VxWorks, starting with version 5. The WRT54GL is technically a reissue of the version 4 WRT54G. Cisco was sued by the FSF for copyright infringement, but the case was settled.[6]
| Version |
CPU speed |
RAM |
Flash memory |
S/N Prefix |
Notes |
|---|---|---|---|---|---|
| 1.0 | 200 MHz | 16 MB | 4 MB | CL7A | New model line, released after the version 5 WRT54G, which returns to a Linux-based OS as opposed to the VxWorks firmware. SpeedBooster is not enabled in stock firmware, however third-party firmware will enable the feature. The hardware is essentially the same as the WRT54G version 4.0. One alteration is that the internal numbering scheme of the 4-port switch changed in this model, from 1 2 3 4, to 3 2 1 0. |
| 1.1 | 200 MHz | 16 MB | 4 MB | CL7B CL7C | As of August, 2009, this version was shipping with firmware revision 4.30.11. This pre-loaded firmware allows the user to upload a 4MB firmware image, whereas the pre-loaded firmware on version 1.0 limited the image to 3MB. Firmware version 4.30.13 is now available for both hardware versions. Fully supported by Tomato, Sveasoft, OpenWrt, and DD-WRT. |
As of January 2006, most third-party firmware is no longer compatible with version 5 of both the WRT54G and the WRT54GS. The amount of flash memory in the version 5 devices has been reduced to 2 MB, too small for current Linux-based third-party firmware. (See table above for information on identifying the version based on the serial number printed on the bottom of the unit, and on the outside of the shrink-wrapped retail box.)
Some users have succeeded in flashing and running a stripped down but fully functional version of DD-WRT called 'micro' on a version 5 WRT54G.[21][22] An easier method not requiring any disassembly of the device has since been devised for flashing v5-v8 to DD-WRT.[23][24]
To support third-party firmware, Linksys has re-released the WRT54G v4, under the new model name WRT54GL (the 'L' in this name allegedly stands for 'Linux'). It is also possible to replace the 2MB flash chip in the WRT54G with a 4MB flash chip. The Macronix International 29LV320BTC-90 is a suitable part although others may work as well. The user must first install a JTAG header and use a JTAG cable to backup the firmware,then replace the chip and restore the firmware with the JTAG cable. After testing for proper functionality of the modified unit,3rd party firmware can be flashed using the JTAG cable and a suitable image file.
Now this is going to blow your mind, but if there is ANY difference in the Workgroup name between the router and the computers, it causes the router to "restrict" bandwidth. Crazy, but true. Also make sure your hardware all matches. (802,11B, G, N) Have you tried disabling DHT and NOT forwarding UDP? (In case it's a memory issue)
Just my two cents....
Karl
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Today's Topics:
1. Problem with wireless access point(?) (Andy Stewart)
2. Re: Problem with wireless access point(?) (John Stoffel)
3. Re: Problem with wireless access point(?) (Andy Stewart)
4. Re: Problem with wireless access point(?) (John Stoffel)
----------------------------------------------------------------------
Message: 1
Date: Tue, 29 Dec 2009 15:32:41 -0500
From: Andy Stewart <andystewart@comcast.net>
Subject: [Wlug] Problem with wireless access point(?)
To: Worcester Linux Users Group <wlug@mail.wlug.org>
Message-ID: <4B3A6769.8080701@comcast.net>
Content-Type: text/plain; charset=ISO-8859-1
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Hi gang,
I just purchased a Linksys WRT54GL wireless access point. Currently, it
is running the stock firmware (upgraded to the latest version). I may
put Linux on it sometime in the near future.
While I can get connected to it with my Linux laptop, I notice that file
transfers start at a screamingly fast rate, and within a minute or two,
drop to barely a trickle.
When I used an entirely hard wired connection, I have no such problem.
Has anybody else noticed this with the Linksys WRT54GL? If so, will the
Linux software solve this problem?
I don't believe that the problem lies with the wireless
hardware/software in my laptop since I have used it on other wireless
access points without problems.
Thanks,
Andy
- --
Andy Stewart (KB1OIQ)
Founder: Worcester Linux Users' Group
Founder: Chelmsford Linux Meetup Group
President: PART of Westford, MA (WB1GOF)
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