Quite often, when I try to connect to the internet, my computer and modem go throught the whole procedure and make the right sounding noises (dialing, funny static/squelch noises, etc.) but then instead of saying "communicating at 28000 bps" it says "Communicating at an unknown rate" and after a pause it disconnects. My local internet provider is clueless. I have reset my baud rate but it has no effect. I have a performa 6200 but am using an external modem (the internal died). The really perplexing thing is that sometimes there's no problem, and sometimes I have to retry a dozen times. I'm using Mac PPP. Have OS 8.5. Modem software is teleport platinum and modem is Teleport 33.6 speakerphone. Have tried all my firends who know computer stuff and nobody has a clue.