Hi - I too am having remote not working every few days after upgrading to latest NZ image. I have never had it hang in 3 years using my old image.
Is there a process I can restart via telnet rather than having to reboot?
I have researched extensively and there doesn't seem to be an easy solution to the problem - mine is definitely not caused by other IR and it seems to happen when not particularly overloading the Tivo with with keypresses.
I would also appreciate the command to stop and start Tivoweb via telnet.
Regards
Brian