Dont know why but I cant upgrade the firmware on my WRT54G v4 I tried upgrading and I kept getting a failed message towards the end of the upgrade. Tried upgrading to the linksys firmware 4.20.7 and it worked fine. I tried another firmware and it crashed the router and I had to actually break open the router and short the two pins on the flash chip to get access to the tftp server. I then reloaded linksys 4.20.7 firmware. Got the router back up and tried to upgrade the firmware again but iot still fails. Tried going through the tftp server and it gives an error that I cant downgrade the firmware. Anyone have a link to a firmware that will upgrade? I need the extra goodies plus I really need to pump up the power. This thing is weak!!!!