Redirection with websites doesn't work properly with ISA Server 2006 SP1

Posted on 2009-02-20
Last Modified: 2012-06-21

Since beginning of december last year we use ISA Server 2006 and from that moment on some users experience some problems when going to various websites. When users go to (for example) it normaly redirects to but since using ISA Server it doesn't put the /nl behind it anymore and shows a blank page to the users.

Is this something which can be fixed with ISA?

Thnx for the help.

Question by:RLengkeek
    LVL 35

    Expert Comment

    So, ISA should not limit any redirection of sites, this is usually a client setting within the browser.

    But it maybe that something is wrong with your network setup, so that the routing does not work properly.

    But there may be some issues, which may force ISA to block some sites. Right click the rule, which is responsible for outgoing web traffic --> "Configure HTTP"
    On the "General" tab you find a few checkboxes, like "verify normalisation" and Block high bit characters". Some Websites using non common characters in parameters, especially if some kind of content management systems are used.

    Also you have some checkboxes "Block responses..." on different tabs.

    The site above points to

    You see additional parameters, and these may be the problem.

    Play arounf with these settings and see, if this solves the problem. (Note the defaults before).

    Accepted Solution

    Sorry for the very late response but wasnt able to reply earlier.

    The problem is fixed and it had to do that the proxy settings towards the clients wasnt fully used. We had a policy wich pused the proxy settings to the clients (IE) but it wasnt filled in correctly so no proxy was used totally. Since this week we found that problem and fixed since then the sites are displayed in a normal fashion.

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