Hi

I've bought a Linksys WRT54GS some years ago and I'm now trying to install the OpenWRT firmware.
The model is named "WRT54GS V1.1" (well that's what is written on the back of my router), current (official) Firmware used Version 4.71.1.
I tried it with the recommened openwrt-wrt54gs-squashfs.bin using the webinterface but I get the error message "Upgrade are failed". Resetting the router to system defaults with the reset-button works and I tried it several times using fresh downloads so I am sure the file is ok - always the same error.

Any ideas?