Both my TiVos (a S2 and a S2DT) had daily calls that failed today. They have been working fine up until now, but both now have identical symptoms. They report "Failed. Error S02." They are wirelessly networked, and both of them report signal strength as excellent (above 80%). Test calls work fine; but daily calls fail. My internet seems to be working just fine as far as I can tell. I did a search and didn't find much information about this error code. One thread suggested that an S02 error was an internal problem in the box -- but BOTH of my machines developing the identical hardware problem on the same day seems kind of unlikely to me. Any ideas?