i m running a NT 4.0 server with microsoft proxy server 2.0, NT option pack and service pack 5, 2 NIC's(one takes from modem n other goes to hub to which all the clients are connected)

each client computer is having diffrent IP address. internet works on all of them but
outlook, yahoo n MSN messenger work only on my server n doesnt work on my client computers.

i have then loaded MSP client on my client computers, then all the services started working well

the problem is. internet explorer works well all the times but the rest won't work sometimes on the clients, n if i restart my server then these services start working well, what should i do to keep them working on my clients all the time?

please help i will be very thankful to u.

marc gujral