IISReset breaks Outlook Anywhere
We are using the Exchange Hub Transport role on our Mailbox server which is running Windows Server 2008. When we perform an IISReset we often (not always) lose Exchange connectivity via Outlook Anywhere (RPC over HTTP). All other connections work including RPC (for local network users) and Outlook Web Access (OWA). We're sometimes able to resume service by restarting the Application Pool associated with the RPC virtual directory. Othertimes a subsequent IISReset will resolve the issue. These fixes are intermittent, though; I'd prefer something more reliable for those times when an IISReset is required (we try to avoid this but obviously it's not always possible).Have other people had this issue? If so, what is your work-around?Jeremy
March 22nd, 2009 12:00am

Hi,Whether any error message come up in the event log?Did you check whether the internal Outlook Anywhere was working when this issue occurred?ThanksAllen
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March 24th, 2009 11:26am

Hi jeremy,here's what i'd suggest.look at iis logs and http err logs (both located in c:\windows\system32\logfiles) and check the error codes when this happens.also, look at app/sys logs and try running an exbpa on the server and see if it shows anything interesting.Thanksna
March 29th, 2009 5:28am

Hi, Im have the same problem but with a small buisness 2008 machine. When doing a iisreset my Exchange Outlook anywhere rpc over http stops working. When doing a two iisreset in a row it works all the time. Any ideas? Im going to check the log and report back here. /Erik
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May 29th, 2009 10:45am

Old post by my search brought me here as I'm having the same issue. Windows 2008 SBS Exchange 2007 SP3. Any chance this has been looked at by MS or a resolution is available? I don't do an IISReset often but I always forget to Outlook Anywhere when I do.
June 9th, 2011 4:37pm

It's always recommended to use iisreset /noforce otherwise you're abruptly terminating services and connections. Test the noforce and see if it makes a difference.James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com
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June 9th, 2011 7:48pm

I will test it. However, when I ran the Sharepoint Products and Technology Configuration Wizard recently it must have ran IISReset because Outlook Anywhere stopped working until I ran IISReset again. I don't expect to run that wizard again but would like to know I don't have to worry about OA when IISReset is ran via any Windows console interface.
June 10th, 2011 1:35pm

This sounds familiar to me. I wrote about the problems IIS Reset causes on Windows 2003 here: When IISReset Kills http://www.exchangeinbox.com/article.aspx?i=22 Have to admit that, I no longer use IISReset. So I did not verify if there were any developments in Windows 2008. However the symptoms you are describing are very similar to those experienced in Windows 2003… Exchange Message Recalling Works! - http://www.windeveloper.com/recall/
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June 12th, 2011 5:04am

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