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ASP.net errors causing loss of connectivity to application

Posted on 2013-02-04
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Last Modified: 2013-02-18
Hi Everyone,

We currently have a hosted application setup where we have one app server, one web server, and one DB all running server 2003.  For about 10 days or so we have been intermittently unable to access the application and are forced to reboot the app and DB servers to mitigate, the issue then occurs again and we have to reboot, etc.  

We have checked countless things and the only thing we can find that is logging around the time of the application hangs that might be related is the following:

Event Type: Warning
Event Source: ASP.NET 2.0.50727.0
Event Category: Web Event
Event ID: 1309
Date:  2/1/2013
Time:  12:23:03 PM
User:  N/A
Computer: ********
Description:
Event code: 3005 Event message: An unhandled exception has occurred.
Event time: 2/1/2013 12:53:03 PM Event time (UTC): 2/1/2013 5:53:03 PM
Event ID: 340b2d6d0f434e3799bcc286c5475b61 Event sequence: 2 Event
occurrence: 1 Event detail code: 0  Application information:
Application domain: /ML*****************
Trust level: Full     Application Virtual Path: /*******     Application
Path: D:\***********     Machine name: *********
Process information:     Process ID: 5820     Process name: w3wp.exe
   Account name: *************  Exception information:
Exception type: IOException     Exception message: The specified
network name is no longer available.
  Request information:     Request URL:
http://**************************     Request path:
****************.aspx     User host address: *****************
  User:      Is authenticated: False     Authentication Type:
Thread account name:*************    Thread information:
  Thread ID: 1     Thread account name: ********************
Is impersonating: False     Stack trace:    at
System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
-----------------------------------------------------------------

Any ideas what these errors might indicate and what we could do to triage if they are in fact related?

Your help is much appreciated!
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Question by:blinkme323
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5 Comments
 
LVL 1

Assisted Solution

by:JamieTownsend
JamieTownsend earned 668 total points
ID: 38854210
I think you need to give a little more information about your setup.  You mention you have three boxes, are these boxes lan'd ?

When you say you are 'unable' to access the application, are you trying to connect to the application from an asp.net website or ?
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LVL 1

Assisted Solution

by:mgbm_it
mgbm_it earned 1332 total points
ID: 38854467
I would suggest checking the Application Pool at IIS
seems like errors are shutting down the Application pool
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LVL 1

Assisted Solution

by:mgbm_it
mgbm_it earned 1332 total points
ID: 38858604
when this error occurs, try an IISReset rather than a full reboot. would the issue get resolved ?
try that and let me know what happens
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Accepted Solution

by:
blinkme323 earned 0 total points
ID: 38885986
Thanks for the suggestions.  We ended up replacing the NIC on our SAN and that rectified the issue.
0
 

Author Closing Comment

by:blinkme323
ID: 38900956
Replaced NIC on SAN
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