Option 1: Tune the query (recommended). This is done on SQL Server code.
Option 2: Increase the time before the connection times out. This is done in .NET code.
Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?
How to post data/code on a forum to get the best help: Option 1 / Option 2