We had a USR TC box with 48 modems and 2 T1s. It worked... Well, we got our third T1 and a used TC box. Now, about a third of our customers log on, get authenticated, and sit there (ping and traceroute work, web browsing doesn't). Or else, they get an error 750 or 765 or other type error. Could our new T1 NIC card be bad? It passes the various tests? Help!!! Other info, the T1 performance test tells me 3865 bipolar whatever errors in the last 24 hours. Bad card??? US West says the line tests out good. Jerry Wright Internet Access of Moses Lake - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.