time for reboot?

I've been following the adventures of NASA's Mars rover with interest. What happened today, with the rover first sending back garbage and then nothing reminded me of something that happened back in 1995, when some co-workers and I tried to put a web server online for the first time (over a dial-up PPP link with a static IP, for those of you who know about such things). Every so often the network connection would go down, and then come back three minutes later. We never did figure out what caused this, but there were times when we'd have to go over to J's house (halfway up the Peninsula), fiddle with the server in the closet for a while and bring it back online. Obviously, the folks at NASA can't really do the equivalent thing with the rover...