I had the same problem with the same H/W and F/w Rev A1
I had to try numerous times, over a WIRED connection, with STATIC IP address.
Also, I believe that before I could get it to work, I had use MS-IE.
Normally, I use FireFox. Oh, I also use Browzar-Black(maybe that's the one.)
Additionally, I believe that I had to disable my software firewall.
Please note that the Firmware update only takes less than a minute.
If nothing is happening within one/two minutes, try again and try something else.
I also had to hold the reset button while powering up just to get to the firmware upload page(default). After a successful upload, I got the proper configuration page from the router.
One more thing, I started with version 1.10 of the firmware.
Please let me know if yiou get it working, and whether or not it will retain the configuration after a power-cycle or re-boot. Mine will not.
Hope this info helps!
Hope this