Speeding up WebDAV performance

If you’re finding that accessing WebDAV shares is running extremely slowly (to the point of being almost unusable), check that the following setting is unticked in your Internet Explorer Options:

Internet Options > Connections > LAN settings > Automatic configuration > Automatically detect settings

IE LAN Settings dialog

IE LAN Settings dialog

I had this setting on on my machine (running IE9) and I found that disabling it made the world of difference to performance – my WebDAV drives became as snappy as anything.

For the record, I’m running Windows 7 x64 and haven’t tried (or experienced) this on any other machines.

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  1. Anonymous
    Posted October 14, 2011 at 9:08 pm | Permalink

    Thank you so much for this post. We are running Oracle Portal 10.1.4 and your post helped us correct the noted problem.

  2. Hans Henrik
    Posted September 5, 2012 at 11:23 am | Permalink

    The reason is that *genius* Explorer.exe runs a __TIMEOUT__-based proxy scan before EACH WebDAV operation. (this stuff is even documented on MDN)
    –Good going microsoft!

    (the 1 good thing that comes out of it is, if your suddenly switching to a proxy while doing some WebDAV stuff, it may still work!)

  3. Marek
    Posted September 10, 2012 at 7:55 am | Permalink

    You saved my life 😉 Thx.

  4. Mario
    Posted April 10, 2013 at 7:28 am | Permalink

    Really nice work. the only way to prevent sharepoint and millions of euros for bill…

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