I have just moved my computer to a different ADSL outlet in my home. The modem connects to the internet quite well just like it always did. But whenever I connect the line from "Phone" on the POTS filter to "Line" on the fax modem card, I lose the Internet connection and the ADSL status light goes red. Unplugging the "Line" connection restores the ADSL connection in about 10 - 15 seconds.
There does not seem to be any mention of this kind of problem on any of the support forums. Any suggestions?