IIS hangs intermitently server2003 IIS6

[davidrobin]

I have an ASP.NET application on IIS 6 (win 2003).

The application hangs then timesout intermitently which then displays a "page cannot be found" error. It seems to be something with data access as I can request a dummy aspx page (with no data access) that I put on the site even when this problem occurs. Data access is SQL 2000 server with SP3a.

This problem does not happen when I am developing locally on my XP pro IIS 5 machine, nor does it happen on server 2000 with IIS 5. Only on the 2003 IIS 6 machine.

If I copy the compiled dll's back into the bin directory closing and opening the browser lets the users carry on working until the next time.

Where do I start to solve this problem. It can happen as frequently as hourly and is such a pain.

David
Visual Basic 6 Ent

 

[davidrobin]

I have been looking at the error logs and the httperr1.log in the system32\LogFiles folder has the following entries in. I have changed the format to comma delimited.

date time,cs-version,cs-method,cs-uri,sc-status,s-siteid,s-reason,s-queuename
2005-10-25 09:25:09,HTTP/1.1,POST,/e-register/StaffAbsence.aspx,-,7457,Connection_Dropped,DefaultAppPool
2005-10-25 09:25:39,HTTP/1.1,GET,/e-register/StaffRTW.aspx,–,7457,Connection_Dropped,DefaultAppPool
2005-10-25 09:25:39,HTTP/1.1,POST,/e-register/StaffAbsence.aspx,-,7457,Connection_Dropped,DefaultAppPool
2005-10-25 09:26:09,HTTP/1.1,GET,/e-register/StaffAbsence.aspx,–,7457,Connection_Dropped,DefaultAppPool
2005-10-25 09:26:09,HTTP/1.1,POST,/e-register/StaffAbsence.aspx,-,7457,Connection_Dropped,DefaultAppPool
2005-10-25 09:27:39,HTTP/1.1,GET,/e-register/default.aspx,–,7457,Connection_Dropped,DefaultAppPool
2005-10-25 09:29:39,HTTP/1.1,GET,/e-register/default.aspx,-,7457,Connection_Dropped,DefaultAppPool
2005-10-25 09:44:09,HTTP/1.1,POST,/e-register/StaffAbsence.aspx,–,7457,Connection_Dropped,DefaultAppPool
2005-10-25 09:44:09,HTTP/1.1,POST,/e-register/StaffAbsence.aspx,–,7457,Connection_Dropped,DefaultAppPool
2005-10-26 08:10:35,HTTP/0.0,Unparsed,–,400,–,BadRequest,-
2005-10-26 08:11:02,HTTP/0.0,Unparsed,–,400,–,BadRequest,-
2005-10-26 08:11:25,HTTP/0.0,Unparsed,–,400,–,BadRequest,-
2005-10-26 08:11:34,HTTP/0.0,Unparsed,-,400,-,BadRequest,-
2005-10-26 08:13:48,-,-,-,-,-,Timer_ConnectionIdle,-
2005-10-26 09:23:38,-,-,-,-,-,Timer_ConnectionIdle,-
2005-10-25 09:44:39,HTTP/1.1,POST,/e-register/StaffAbsence.aspx,-,7457,Connection_Dropped,DefaultAppPool
2005-10-26 11:26:47,HTTP/0.0,Unparsed,–,400,–,BadRequest,-

Can anyone give any help on what the problem might be and what the next steps are to fix it, what can I monitor to find the problem.

I have been reading the IIS6 resource kit book but it is doing my head in I find it tells me a lot but not what I need to know regarding this hang.

David
Visual Basic 6 Ent