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TMG Blocks IE9, Allows IE8, Chrome, Firefox RRS feed

  • Question

  • My IE9 users can't post to Craigslist.  IE9 reports 403 error.  The TMG report shows the traffic on port 443 is blocked by the 'Blocked Web Destinations' rule.  However, there is a higher rule to Allow Specific Websites.  This rule works correctly for IE8, Firefox, and Chrome.  Why does it deny IE9?

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    Beware of unmoderated moderators in the Expression Web forums.

    Tuesday, October 23, 2012 6:24 AM

All replies

  • Hi,

    Thank you for the post.

    Before going any further, I’d like to confirm the following questions:

    1. Does this issue occurred to all the web site or just craigslist?
    2. How do you deploy TMG server? NLB cluster?
    3. How do you configure web proxy clients? Automatic configuration script?

    Regards,


    Nick Gu - MSFT

    Wednesday, October 24, 2012 3:27 AM
    Moderator
  • thanks for your help.

    1.  The other websites we use are not blocked by TMG's 'Blocked Web Destinations', so I have not tested creating exceptions other than for Craigslist.

    2.  We have a single TMG server on the Edge.  We don't use NLB.

    3.  In IE9 I have tried 'Automatically Detect'.  I've tried setting the Proxy Server directly.  I've tried turning off all check marks.  All three of these methods work with IE8, Chrome, and Firefox.

    The TMG log clearly shows that TMG is blocking the IE9 traffic as if the exception rule does not exist.  I'm confused why TMG works correctly for IE8, Chrome, and Firefox.


    Beware of unmoderated moderators in the Expression Web forums.

    Friday, October 26, 2012 8:27 PM
  • Hi,

    Thank you for the update.

    Does this issue occurred to all the IE9 clients? If you tried to start the IE9 in compatibility mode, like IE8 and IE7; does it work?

    Regards,


    Nick Gu - MSFT

    Saturday, October 27, 2012 1:10 PM
    Moderator