SCO

Hi,
I am having two servers both having same version of sco unix 7.1.4 and the network was fine till some days back. There was a power cut off and the both the servers were forced to go off abnormally. Since then i m having problem with one of the server. the problem is i can connect from one server to another but i cannot connect from my clients i.e win xp machines. when i say ping i m getting .

Reply from xxx.xxx.xxx.xxx : bytes=32 .....
Request timed out
Request timed out
Request timed out
basically i m getting one line as connected ..

how do i sort this , there is lots of data on the server , i want to skip the reinstallation ..
please advice as soon as possible.