Friday, October 30, 2009

Windows Explorer very slow when browsing SharePoint Libraries

This problem has been popping up sporadically over the past number of months and I was unable to pin it to a particular client or server version. I’ve seen it in Vista and Windows 7 clients and also on MOSS 2007 with SP1 and with SP2.

When opening a SharePoint library using the Windows Explorer, the user had to wait anything between 5 and 30 seconds for a reaction – opening documents caused the same delay. It was impossible to use effectively.

I still haven’t worked out exactly how this setting is related, but changing it seems to have done the trick. Under “Internet Options”-“Connections”-“LAN settings” I disabled the checkbox “Automatically detect settings” (see below). Even though this was not effecting all users, I pushed this setting out in a GPO – so far so good.




Windows Explorer must have been looking for configuration settings every time the user clicked on a folder


  1. Hey, this was exactly my issue...Thanks, it got fixed

  2. Our users were experiencing very slow loading of word documents from sharepoint libraries... Changing this tiny option did the trick - it works blazingly-fast now !

    Thanks !!!

  3. We didn't have a problem too much with MOSS 2007 but this did the trick for SharePoint 2010. Thanks!

  4. Great - I have read tons of M$ whitepapers trying to understand where the issue is. But your solution does the trick. Thumbs up.

  5. I've also noticed this issue with SharePoint 2010.
    ....still not sure what exactly the cause is and no one from Microsoft has been able to properly explain it :(