We have just installed the HR2 hotfix rollup onto our Tridion Content Manager servers. These servers were previously running SDL Tridion 2011 SP1 HR1.

We have upgraded the CM database and completed the installation on the CM servers. Now when I try and access the CM Explorer in a browser, I see the following error. The CM Explorer doesn't load the list of publications, and throws the following error:

The remote server returned an error: (404) Not Found.
   at System.Net.HttpWebRequest.GetResponse()
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)

We are also seeing the following error in the event logs on the CM Servers:

A method call to an object in a COM+ application was rejected because the caller is not properly authorized to make this call. The COM+ application is configured to use Application and Component level access checks, and enforcement of these checks is currently enabled. The remainder of this message provides information about the component method that the caller attempted to invoke and the identity of the caller.Svc/Lvl/Imp = 10/6/1,  Identity = <Username>

enter image description here

Does anyone have any ideas what could be causing this? Has the installer reset some of the DCOM configuration settings, or bindings, or has something not been restarted correctly?

Both CM servers have been rebooted following the installation.

  • 1
    In the components snap-in right-click on Computer, choose Properties. Then select the COM Security tab is your account is allowed to access the components? Jul 24, 2014 at 17:24
  • As far as I can see, yes. The Access Permissions and Launch and Activation permissions are identical to another CM server which is working correctly. Jul 25, 2014 at 7:19
  • What is the OS on both of your servers? Also, did you try rebuilding the user profile for the user set as the user in Identity tab of the COM+ application. Jul 25, 2014 at 8:28
  • The OS on all servers is Windows Server 2008 R2. How would we go about rebuilding the user profile? The same service account is specified for both servers, and works fine on the other server. Jul 25, 2014 at 9:11
  • Interestingly... when I get the screenshot as per the original post when loading the CME, if I then right click where the list of publications should be, and select refresh, the list of publications does then load. I can then browse through the CME and open pages and components successfully, although each time I do open something, I get the 404 non found error popup again. Jul 25, 2014 at 9:14

1 Answer 1


Recently I had a similar problem after install HR1 and HR2 on Tridion 2011 SP1.

After checked granted permissons of MTSUser on %TRIDION_HOME% I realised that this user lost their priveleges. After granting tridion works fine again.

Hope this helps!

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.