ODBC SQL Server Driver Timeout expired

In the last few weeks i've got the problem, that I can't call the stats of my webseite because of an timeout error.

My database is about 1.3gb at this time and I regulary call routines to reduce the index fragmentation, but nothing worked till yet.

The timeout-problem is displayed, when I login in the metatraffic webend and even if I try to call any other page (e.g. the maintenance page) in the webend.

I already tried to manipulate the timeout-time in the core.asp.
afer line 195 I added: "objConn.ConnectionTimeout = 300"
After line 199 and 205 and 216 I added: "objConn.CommandTimeout = 300"
But this also didn't work.

What do you think the problem could be?

Greetings from germany,
the poolitzer.