I am new to Broadband, and just set up with Freeserve Broadband, with a D-Link DSL-200 modem. It seems to be working OK, but if I use the telephone whilst online, the modem disconnects. It has occasionally disconnected at random, but it ALWAYS disconnects when the phone is used. The Freeserve blurb says I should be able to use the phone at the same time. Please help!