Server Shares Freezing - cannot save or close work
I don't know if this is the right place to put this as I don't know if it is a server problem but here goes..
The server is an HP Proliant running Server 2008R2
It has been pretty reliable up until now.
Randomly, every few days, someone will come and tell me that they can't save as everything has frozen. I have to restart the server to unfreeze it.
There is nothing that I can see in the logs that would explain it.
I thought it was when the load increased - eg when a classful of children were logging on together but it has just done it at lunchtime when minimal people are logged on. (three weeks running it it did it at 1.20pm on a Monday)
I have solved it once by switching the switches off and on again - but that could be the removal of the load on the server that made it all unfreeze.
Has anyone ANY ideas what I can look at?
The switches are unmanaged and I have only managed to get hold of two spares that I could swap out. I had targeted the switch with most of the IT suite connections on it but today's event might make that a bit pointless.
I am really stuck this time as I have absolutely no idea where to start.