Deadlock på server

Hej
I forbindelse med skift af asp .net 2.0 til asp .net 4.0, får jeg indimellem følgende fejl:

Event Type:    Warning
Event Source:    W3SVC-WP
Event Category:    None
Event ID:    2262
Date:        27-05-2014
Time:        13:00:45
User:        N/A
Computer:    CHIP
Description:
ISAPI 'c:\windows\microsoft.net\framework\v4.0.30319\aspnet_isapi.dll' reported itself as unhealthy for the following reason: 'Deadlock detected'.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.


A process serving application pool 'Test' exceeded time limits during shut down. The process id was '6008'.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Jeg har googlet og fundet frem til flg.:

http://support.microsoft.com/kb/821268

I linket står noget med at det er connection


Jeg gik ind
C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Machine.config


rettede:
  <system.web>
    <processModel autoConfig="true"/>

til:
  <system.web>
    <processModel maxWorkerThreads="30" maxIoThreads="30">


Hvilket resulterede i en fejl, som jeg desværre ikke fik noteret mig.

Any clues?