ICS trouble

I have two computers on a peer-to-peer network, and I’m going crazy trying to make ICS work. The host computer is connected to the internet over a cable modem. The network connection works fine; both computers see each other and exchange data withno trouble. ICS installed with no trouble, and TCP/IP settings are correct and correctly bound.

There was a time when the client connected properly – just this morning after running 98SE setup again, but after restarting the client, all collapsed again-IE reports no connection available even after running the wizard again and again.