Have you tried power-cycling the ADSL/Cable modem and router?
And releasing and renewing the WAN DHCP lease at the router?
If running XP, maybe a system restore to a point prior to the trouble?
(Was directx 9 installed?)
If running XP, Is the "Internet Gateway Device Discovery and control client"
installed under Networking Services in Windows Setup? (should be,
...UPnP on the client and router should both be disabled however)
Is there any antivirus software running? (should be completely disabled)
Is the client machine on the LAN configured with a static IP?
(should be for DMZ or port forwarding to work reliably..)
Has the ISP started blocking/filtering "hacking" ports?
These are just some initial thoughts and questions,
I think I read of somebody with the same problem on
the old Forums but havent been able to find it yet...
Can she see any other D2 servers? Or join GSA rooms hosted by
others? If so, the problem may be on your end DarkElf.
Have you been testing the loginban feature? (not sure how it
works but you might want to check your hosts file...)
P.S. if the firewall in use is BlackIce, I have found it to block
the WON servers even when the engine is shut down
and the application closed. I resolved this by adding the
WON IP addresses to the firewall's trusted list.
(208.57.228.3 - same IP as old Taldren forums)
See if you can ping sfc2.west.won.net or sfc2.central.won.net
(both map to 208.57.228.3)
I have stopped using BlackIce since.
...the old forums seemed to just die as I was browsing
search results there - In which case the WON server is likely
down right now too (3:40pm EST) - arg! - Just came back up @ 3:46pm EST...
Note: I had to add the new forums address to my trusted list in ZoneAlarm
for these forums to work correctly. (unrelated - unless you changed a trusted entry
for 208.57.228.3 (Old Forums and WON server) to 208.57.228.4 (New Forums).
If none of this helps, give us some more config info (OS etc...)