Linksys WRT54GX2

After I returned WRE54G, I bought WRT54GX2.
I don't know if it really increases my range, but I noticed that all the deadspots in the house that I know of have disappeared. In the past, interactive session was not very pleasant as the connection frequently became laggy. It is not occurring that frequently anymore; there are still some occurrences, typically in the morning (06:00 or so).
The bad thing about WRT54GX2 was the wired ethernet port could not reliably auto-negotiate 100baseT protocol. Googling for it lead me to http://www.dslreports.com/forum/remark,14714795. The firmware on my device was 1.01.06. So, I downloaded the new firmware (1.01.14 as of now) and tried to upgrade the device.
But I was unable to update the firmware. None of the suggestions in that URL did the trick. Experimenting for one hour with various settings didn't yield anything either.
Just when I was close to giving up, I had this crazy notion of trying to do the upgrade using Internet Explorer. Behold! It worked.
I find it hard to believe that a device manufactured in 2005 by a company using GPL code would still require a particular browser. But believe I had to.
Anyway, don't bother to backup your configuration by Administration -> Config Management -> Backup. It's worthless as the configuration file is version-specific. Pen and paper would work better.

(originally from http://microjet.ath.cx/WebWiki/2006.05.03_Linksys_WRT54GX2.html)