So I just upgraded the WRT54GX4's firmware from 1.00.13 to the latest version, 1.00.17. I did the long reset (hold button in for 30 seconds, disconnect power, blah blah) before and after the upgrade. Everything is working fine EXCEPT I can't enter static DNS servers in the Setup page. I'll enter the numbers in Static DNS 1 & 2, click the Save button, and the router will give me an error page (with an extra-long funky URL). I can make changes to other fields on the Setup page and they will save fine. Just not the DNS's. Has anyone with version 1.00.17 firmware experienced this same problem? Maybe you can try to enter a manual DNS number such as 188.8.131.52 and let me know what happens. Thanks!