I have been reading on other sites this is a problem common to Netware 6.5
SP3, I was wondering which updates I need to apply in order to stop this?
As I have seen various solutions mentioned even going to the latest
support pack, but then I read somewhere else people were still
experiencing the same problem.

I would be grateful if someone could please shed some light on this? As it
is getting very annoying to say the least.

There is no pattern to when it restarts, sometimes if can be during lunch
time, other times it can be during or after a backup.