can't accesss my rrouter after installing NIS 2011

Hello,

 

I have made NIS my protection for my 2 pc's and installed it last week at both machines. (before this I used G-data)

After installing NIS it is not possible for me to access my router anymore at http://192.168.0.1/ from both pc's.

 

I can't find out where I can fix this problem, so I hope I can get some help here.

 

The router is an Sitecom WL-312 - Wirelessrouter 300N and i am running Windows 7 on both pc's.

 

Thanx