Website on server returns - Internet Explorer cannot display the webpage

5 posts, 0 answers
  1. Coty
    Coty avatar
    90 posts
    Member since:
    Aug 2006

    Posted 05 Sep 2009 Link to this post

    I updated my controls to Q2 2009 and am having a pretty tough time with it.   I downloaded the .msi installer and used that to install the new version.   All the controls errored.....so after reading alot of forums and different installer/deployment documentation I got them working.  Then when I copied them to the server and i tested the website I simply get the generic "Internet explorer cannot display the webpage" error in both IE7 and 8.  I tried both from my computer and remoted into the webserver and it doesn't work there either.  However i remoted into our terminal server and it works there....and it also works when I debug it from VS2008.

    All the pages worked before I updated the controls, so I will give a rundown of what changes I had to do to get me where I am now.

    1.    I added an entry in my web.config.
    ...  
    <add assembly="Telerik.Web.UI, Version=2009.2.826.35, Culture=neutral, PublicKeyToken=121FAE78165BA3D4"/>  
          </assemblies> 
            </compilation> 
    2.    I added both the Telerik.Web.UI.dll and Telerik.Web.Design.dll to the GAC (assembly folders) on both my machine and on the web server.  (neither were present after the installation process)

    There was an older version on the server which I uninstalled......and I tried to uninstall the older version on my machine as well but I got an error that stated "required by other applications"   Which leads me to the question should I remove older versions or keep them there?  How do I get past this error if I should uninstall them?  I did read somewhere that if multiple versions are present you need to make sure you specify the version as I did above.

    3.    I deleted the telerik DLLs from the bin folder on my PC and the webserver
    4.    I added an entry to the machine.config file on the servers.  In your documentation here: http://www.telerik.com/help/aspnet-ajax/installaddtoglobalassemblycache.html it states the path to find the machine.config, however it needs to be more specific in that the machine.config is NOT located in v3.5 or v3.0 folders, but there is one located in v2.0 and v1.1.  And the v2.0 folder with machine.config doesn't have an assemblies section for me.......so i added an entry to the v1.1 machine.config file.  It would be nice if your documentation went into more details about where the correct file is located.  Anways, here is the entry in my machine.config assemblies section in the v1.1 folder/CONFIG.
    <add assembly="Telerik.Web.UI, Version=2009.2.826.35, Culture=neutral, PublicKeyToken=121FAE78165BA3D4"/> 
    Same exact thing right?

    So now what am I missing?  It's really disappointing that I have to go through all this just to upgrade......I probably wouldn't of upgraded if I knew.

    Coty

  2. Erjan Gavalji
    Admin
    Erjan Gavalji avatar
    1455 posts

    Posted 06 Sep 2009 Link to this post

    Hi Coty,

    The "Internet Explorer cannot display the webpage error" error denotes that there is a trouble in the networking between the webserver and the client computer. A hint: can you check that the webserver is running (through the IIS configuration panel)? It could have been stopped during the upgrade process.

    Once you have the connection successfully established the webserver would start the ASP.NET engine and parse the website. If everything is fine, you should get the website running. If there is a problem within the website (either related to RadControls or not), you would get the typical ASP.NET yellow error screen.

    Let me know the results.

    Best regards,
    Erjan Gavali
    the Telerik team

    Instantly find answers to your questions on the new Telerik Support Portal.
    Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
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  4. Coty
    Coty avatar
    90 posts
    Member since:
    Aug 2006

    Posted 07 Sep 2009 Link to this post

    The website is started in the IIS manager and the service is started in admin tools > services (World Wide Web Publishing Service).

    I understand that it looks like a connection problem but it's not.  It works on some computers and doesn't on others.  Also I have our website www.robsonforensic.com running on that server and that works, and I also have another intranet web program running on the same server and that works as well.  The only one that doesn't work is this one that I updated the telerik controls on.......which worked right before I updated them.   So it's something the controls changed on the web application.

    Would IE block your controls for any reason?  I am going to add it to trusted sites in IE to double check that but is there anything else you can think of?

    Coty
  5. Coty
    Coty avatar
    90 posts
    Member since:
    Aug 2006

    Posted 07 Sep 2009 Link to this post

    Ok I got it I think.....

    On my server, for this particular website in IIS properties, under the Website tab, there is a checkbox named "Enable HTTP Keep-Alives".   It was unchecked, once I checked it and applied the changes I can get to the site.

    I am not sure why it worked on some computers and not others, but perhaps the newer controls required more connections?

    Anyways here is the explanation of the HTTP Keep-Alive option:
    http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/ea116535-8eb9-4c80-8b14-b34418dbfe42.mspx?mfr=true

    Thanks for your help!
  6. Erjan Gavalji
    Admin
    Erjan Gavalji avatar
    1455 posts

    Posted 07 Sep 2009 Link to this post

    Hi Coty,

    No, we haven't identified any blocks of our controls so far and there is no need to add your site to the trusted sites from the RadControls perspective. Can you open a formal support ticket (for privacy reasons) and send us a link to access that website and check it directly?

    Best regards,
    Erjan Gavalji
    the Telerik team

    Instantly find answers to your questions on the new Telerik Support Portal.
    Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
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