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IE11 will not allow proxy bypass addresses

    Question

  • Hello, after 2 frustrating days, I want to know if anyone has come across this issue and resolved it before I roll back to IE 10 for my 3 sites, as I cannot be the only one!

    Using Windows 2008 R2 as domain controllers.

    Clients are all Windows 7 SP1 with IE11 installed

    IE was applied to the sites a couple of months ago and things were working fine. A few days ago I added a website to the proxy bypass settings in the Group Policy - whilst I was here, I did think it was a bit strange that it was set as a reg key and an Internet setting - but as I didn't set these up (I've only been here a year), I didn't want to mess with what was working (irony)

    As soon as I added an address to the proxy bypass (only did this at one of the 3 sites), the site I did this at stopped using the proxy. This caused issues in outlook with Out Of Office assistant and viewing free busy information for arranging meetings. As I delved deeper into this issue, I found the answer was a problem with the proxy settings.

    I have added the IE 10 settings, by using a Win 8 client to manage the group policy (this in itself took me about a day to realise you couldn't do this with Win2008). I can send the exact correct settings down to the clients, and I can check in the registry that they are getting the settings, but in IE, there is nothing in proxy settings. Its all blank. I've read that with IE11, if you use the advanced tab, it then removes all proxy settings. If I send proxy details out via GP and don't add any proxy bypass addresses, it works fine - however, I do need to bypass the proxy, as this is also causing intermittent outlook connection issues (using symantec squid). I've tried seperate policies, using reg key instead of internet settings, but no combination allows me to use the proxy and have bypass addresses.

    If someone has resolved this issue in the past, then please let me know what you did. On a test PC, I rolled back to IE 10 and it worked perfectly with bypass addresses in - so I could rollback, but I'd rather not go back to go forward!

    Thursday, March 19, 2015 5:33 PM

Answers

  • > want to go to all the effort unless I know it works for sure.
     
    It does. We are using it from IE6 (XP) up to IE11 (8.1) and with Firefox
    from Version "I don't remember" without any issues.
     
    > reg key to add the bypass addresses, then the proxy settings were
    > applied successfully, it was only when I tried to use bypass addresses
    > that the proxy settings were again blanked out.
     
    This was a known issue in W7, at least. Unsure whether it still exists.
    As soon as you put in more than a simple proxy entry, things start to break.
     

    Greetings/Grüße, Martin

    Mal ein gutes Buch über GPOs lesen?
    Good or bad GPOs? - my blog…
    And if IT bothers me - coke bottle design refreshment (-:
    Friday, March 20, 2015 12:58 PM

All replies

  • The most sophisticated solution to configuring various proxies and proxy
    bypass sites is to use a pac file:
     

    Greetings/Grüße, Martin

    Mal ein gutes Buch über GPOs lesen?
    Good or bad GPOs? - my blog…
    And if IT bothers me - coke bottle design refreshment (-:
    Friday, March 20, 2015 8:46 AM
  • Hi Jacob,

    We can follow the suggestions provided by Martin to configure proxy settings. Besides, how did we use group policy to deploy the proxy settings, via GPP Internet Settings extension? If yes, as a workaround, we can try to use GPP Registry extension to do this to see if it helps.

    Regarding how to do this, the following article can be referred to as reference.

    Configure Internet Explorer IE 11 Home Page / Proxy Settings using the Registry and Group Policy Preferences.

    http://www.blackforce.co.uk/2013/12/05/configure-internet-explorer-ie-11-home-page-proxy-settings-using-the-registry-and-group-policy-preferences

    Please Note: Since the website above is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

    Best regards,

    Frank Shen


    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Friday, March 20, 2015 9:21 AM
    Moderator
  • Thanks for the suggestions.

    Martin, the PAC file option is something I thought about, I'm not sure I want to go to all the effort unless I know it works for sure.

    As for your suggestion Frank, I have tried the GPP reg extensions. The problem is, I tried applying the keys in a different order, but it didn't seem to matter. The client PC would have all the registry keys, but when I opened IE, the proxy settings were blanks. If I removed the reg key to add the bypass addresses, then the proxy settings were applied successfully, it was only when I tried to use bypass addresses that the proxy settings were again blanked out.

    Friday, March 20, 2015 10:41 AM
  • > want to go to all the effort unless I know it works for sure.
     
    It does. We are using it from IE6 (XP) up to IE11 (8.1) and with Firefox
    from Version "I don't remember" without any issues.
     
    > reg key to add the bypass addresses, then the proxy settings were
    > applied successfully, it was only when I tried to use bypass addresses
    > that the proxy settings were again blanked out.
     
    This was a known issue in W7, at least. Unsure whether it still exists.
    As soon as you put in more than a simple proxy entry, things start to break.
     

    Greetings/Grüße, Martin

    Mal ein gutes Buch über GPOs lesen?
    Good or bad GPOs? - my blog…
    And if IT bothers me - coke bottle design refreshment (-:
    Friday, March 20, 2015 12:58 PM