I have a Beige G3 that I have set up running OS 8.5 with AppleShare IP. For some reason, it keeps crashing. I can't seem to figure out the problem. If I boot it up, it will disappear from the list of servers in the chooser within 2 hours, requiring me to reboot it.

Any clue as to what's causing the instability? I have a Power Macintosh 6500 also acting on a server, and hasn't crashed in over a week.