>>For me the server is still there, but refuse to process the request.
>
>I heard they were playing with the CPU allowance to SQL Server this week. We discovered at first it was too low. Maybe it could have been related to something like that.
Yes,
The Server will refuse a query if it is too busy.
Against Stupidity the Gods themselves Contend in Vain - Johann Christoph Friedrich von Schiller
The only thing normal about database guys is their tables.