Can't Log in to existing ispconfig system

[bergkamp(10)]

Hi,

I have an existing ispconfig server running opensuse 10.1. Everything is functioning correctly and the server is running live. I used to be able to log in to the ispconfig admin side but now - today i cant get in. I'm getting - page cannot be displayed. Please help !

SSH is working
Firewall is off
Restarted the ispconfig system
Restarted the entire machine
All routing to the box is fine (port 81 -> ispconfig box)

All websites running fine but can't get to the ispconfig login screen anymore ?