My mom's S1 SVR2000 Tivo internal modem has died as well as a few years later an external modem, so I finally put in the Turbonet a few months back and got it all working after running cable and etc. It worked fine and now all of a sudden it gets Service Unavailable when trying to make a daily call. It is connected to a Netgear router and the light on the router for the Tivo is green indicating it at least has some connectivity to the router. I had her from her computer connect to the netgear router (thru IE) and look at the attached devices and the only device attached was her computer (it had been a while since the Tivo had tried to connect). I then had her try to make a daily call and then checked the Netgear attached devices and it showed IP address / Device Name / MAC 192.168.1.3 / - / 00:0b:ad:32:12:1f 192.168.1.4 / Mainpc / 00:1b:b9:d1:79:af From the Forums the 00:0b:ad:xx:xx:xx is the TurboNet so it at least is able to send packets to the router. I had her ping 192.168.1.3 and it replies just fine. I don't have any of the TCP hacks on the Tivo, so I can't have her telnet into it or anything. I also found in the forum one person said that they re-entered the ,#401 dialing prefix and it started working for them. I had her try that and still no luck. I told her to just occasionally try the Daily Call to see if it would sometime connect because many people have been saying they have had intermittent problems. I have also had her power it down and back up. When she does attempt a Daily Call it takes like 4 minutes or so for it to fail. It just sits there on Connecting forever and then finally a few minutes later fail. Any ideas on what is going on. I live 10 hours away from her and have to do everything remotely and having her take the Tivo apart is not an option.