Dynamics AX: Connection with the Application Object Server could not be established


Symptom


On a Terminal server, new Dynamics AX users are not able to log into AX client on a workstation. The users are seeing this error when logging into Dynamics AX:

"Logon Error: Connection with the Application Object Server could not be established"

Cause


The user's AX configuration is not correct. The AOS server name contains the wrong server name.  

Resolution


The aos2 string value had the wrong AOS server name from the original install.  Change the value of aos2 in the following key in registry - HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Dynamics\5.0\Configuration\Original (installed configuration).

Now when a new user logs into the workstation (a terminal server), his/her AX configuration would have the correct value. The user's AX configuration is stored in this key -

HKEY_CURRENT_USER\Software\Microsoft\Dynamics\5.0\Configuration\Original (installed configuration)

The user's AX configuration key is a copy of the same key from HKEY_LOCAL_MACHINE.