Tuesday, 15 April 2008

Outlook 2007 stays "disconnected"

Sometimes I do these things just to try them out... For example, I recently got a new laptop and decided to install Vista 64-bit on it and Office 2007. I have the IT team reporting to me so it makes sense that I try out some stuff and I tend to be able to help myself enough that I don't cause a drain on their resources. I decided a while ago not to upgrade our internal systems to Vista or Office 2007 for a while yet. Vista partly because of the hardware requirements which we can't meet, partly because it is still flaky - even after service pack 1. Office 2007 because the UI is so different that it will just cause a lot of calls to the IT Helpdesk and I can't see any real benefits in the new version - it is mainly window dressing with little substance.

But I digress... One of the problems I have had with my setup is that often when I switch between the wireless and the wired network (many times a day - the curse of being in and out of meetings) Outlook 2007 will go into "disconnected" mode and will stubbornly stay there. Normally a reboot will sort it out but not today so I decided to do a bit of digging. It turns out this is well-known problem in Outlook 2007 and I have seen reports back from May 2007 - but still no fix from Microsoft. They do have this article but the "solution" in there doesn't work and is in any case unrelated IMHO (it only deals with RPC, I have the same problem with pure HTTP)...

However, some kind soul on a message board revealed the secret: you need to run "ipconfig /dnsflush" in a command window and it sorts it out. Mind you, you need to do this each time you see the problem. Would be nice to see a fix to this problem...

10 comments:

  1. This comment has been removed by the author.

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  2. I've had the same problem, and just posted the solution I found on my blog: http://techierambles.blogspot.com. It looks like the problem is caused by a limit on the Exchange server that lets you only have 32 MAPI connections open. Simply disabling "Download Shared Folders" in the advanced account settings is supposed to fix it, and I also ran across someone who said Microsoft support admitted it's a known issue that is supposedly going to be fixed in an update to be released in Dec 2008. Hope that helps.

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  3. This comment has been removed by the author.

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  4. I've actually had quite a bit of traffic come from this post to my blog, but realized I only provided a link to the main page. The actual post about the Outlook 2007 disconnected fix is here: http://techierambles.blogspot.com/2008/09/outlook-2007-stuck-disconnected.html

    I've used it 3 or 4 times with my users and they've been fine afterwards. There is a 2 hour window though before it'll go away, but it shouldn't happen again after that. You can probably force the Exchange server to reconnect if you really needed to.

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  6. I had this problem today and the DSN flush fixed the problem.

    Not sure if you got the command mixed around or if it's just different in Windows 7, but I had to use:

    ipconfig /flushdns

    Thanks for putting me on the right track!

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