I've been using my Draytek 2500V for years without any problems. I recently noticed that the Firewall LED wasn't lit any more. Under setup both the Call and Data filtering are set to enable. I can edit these filters, but I notice that I can't make any changes to DOS defense settings or URL content filters. One last thing the system time settings also cannot be changed and time starts from 1st Jan 2000 every time the router is started.

I've tried reloading the firmware (rst) but that hasn't made any difference. Anybody have any clues to whats happened to it.

Model Name : Vigor2500V Series
Firmware Version : V2.5.9.1
Build Date/Time : Sat Sep 25 16:54:10.41 2004
ADSL Firmware Version : 3.27 Annex A

Just figured out what was wrong. The 2500V's html configuration doesn't work with Opera 10. Using Firefox 5, I can change all the firewall and time settings. The firewall light is now back on.