by poppadum » Tue Feb 14, 2012 7:52 pm
The only thing I can think of is that the Windows PPP server is not passing packets from Tivo to the outside world.
I remember I did get it working using WinXP as the PPP server, but it was many months ago on an old altepg image. A couple of things to check:
1. In control panel / network connections / incoming connections (i.e. the incoming PPP connection) go to properties / networking / TCP/IP; check that Windows is assigning a suitable IP address for your LAN and make sure that 'allow callers to access my LAN' is ticked.
2. With the PPP connection up, telnet in to tivo and run ifconfig and route.tivo to check that tivo knows to use the Windows end of the PPP link as the default gateway. Then try pinging the IP address of your router from tivo, and if that works, try pinging the altepg server (194.1.151.205).
I vaguely remember I had to hack one of the itcl libraries on tivo to delete /var/tmp/pppaddr to stop tivo trying to use the modem for a daily call, but I thought that was no longer necessary on the recent altepg images?