This is driving me insane. I've spent hours on the phone with Earthlink TrueVoice tech support and have yet to get a dial tone. I'm looking for advice from anyone else who has had similar problems. Here's the deal: I have Earthlink TrueVoice voip through Comcast (or at least, I'm trying). But I can't get a dial tone and Earthlink simply says "I don't know, should work." Windows XP. Cable modem connects to ethernet port on computer and I have no trouble with internet connection. If I use a wireless router with the cable modem, I also have no problem getting an internet connection. I have disabled Windows firewall because I use Norton Internet Security. I've disabled that as well, but it didn't make any difference. When I connect the cable modem to the Lynksys SPA2100 telephone adapter, and in turn, connect the adapter to the ethernet port on the computer, I lose my internet connection. I do not get a dial tone. I don't even hear any static. When I press **** on the phone keypad, I hear nothing back. I replaced the ethernet card on the computer, but that had no effect. So I disconnect the SPA2100 and attempt to go in through the wireless router. The setup is as follows: (using a Linksys SPA2002 ATA this time) cable modem to wireless router via ethernet cable; router to telephone adapter via ethernet cable. Again, no dial tone, no static, no ability to communicate with the ATA. In both cases, the yellow status link on both adapters (SPA2100 and SPA2002) flash (never solid). The green phone line lights flash. on the 2100, the green internet port and ethernet port lights flash. I've spent maybe 10 hours over the past couple of weeks on the phone with Earthlink support people. I have restarted, unplugged, used different cables, installed a new ethernet card, disabled firewalls, reinstalled drivers, and nothing ever changes. I'm about ready to give up and go back to Ma Bell. I've been without a phone for 2 months and the cell bill is going to be unreal. Any ideas? Please?