I believe the back-off gets longer and longer each time it fails. After some searching I realized the reason why Outlook hangs forever is that it tries to hit this URL, gets denied, uses some back-off logic, and tries again. I brightly plugged the URL to the OAB.XML file into IE and was greeted with a 500 – Internal Server Error message without an authentication prompt. This works fine, or appears to until your Outlook 2007 client tries to download the OAB and hangs forever. So, you need to go in to each virtual directory and undo the change you made for the root. If you read the procedure you’ll notice setting the redirect at the root sets the same redirect on every single virtual directory. Second – I had enabled a redirect at the Default Web Site root to dump clients to the /owa folder gracefully using the Microsoft methodology at Technet.
#Microsoft outlook 2007 downloads update#
I ran across some blog that mentioned Rollup Update 7 may include this change by default.Ĭ:\Windows\system32\inetsrv\appcmd.exe set config /section:system.webServer/security/authentication/windowsAuthentication /useKernelMode:false Run this command to fix that issue and you’re halfway there. The solution is to turn off kernel-mode authentication in IIS. There were actually 2 problems here that made the situation a real pain in the ass.įirst – the same bug that affects Outlook Anywhere on Server 2008 apparently does a number on the OAB too. I would have been happy to see an error so I had something to search on. I double-checked all the URLs, flipped around SSL settings, but still couldn’t figure out why it wouldn’t download. No error, no timeout, no progress indicator, no login prompt, Outlook just looks like it’s endlessly trying to download the OAB.
Works fine via public folders, but not web-based. Everything working perfectly with one exception – the offline address book (OAB) never downloads from the file distribution point for Outlook 2007 clients. Exchange 2007 SP1, with Rollup Update 6 on Server 2008.
Simply perform the solution at the end of the post. Update: This post gets a lot of traffic, but I want to be clear the first step here is no longer required.
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