I have an odd problem with my TC Hub (at least I think it's the TC's problem). Starting this afternoon suddenly all my ISDN customers can't connect while modems work just fine connecting to the same unit. One customer says he can connect to another ISP using his ISDN line but not to us (but he can connect via a modem). I'm a little clueless as where to look for the culprit, moreso since we haven't touched the unit in months. Any ideas what, where I should check? Oh, it's an older unit, pre-DSP....about 3 years old. Thanks, ---Marius - 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.