We are running some applications and 3 times a day and every night we get the
following error
Connection failure (Number : -2147467259)
OR
[DBNETLIB][ConnectionRead (recv()).]General network error. Check your
network documentation. (Number : -2147467259)
OR
Timeout expired (Number : -2147467259)

It happens random, has nothing to do with backup,....

This is since we use SQLServer 2005, never had any problems with
SQLServer2000.
Everything else is the same.

Any help would be strongly appreciated