AM Manager does not respond

Document ID : KB000106091
Last Modified Date : 10/08/2018
Show Technical Document Details
Issue:
Users are getting the pop up "The AM Manager does not respond. Please check if the AM Manager is running" intermittently when they launch DSM explorer or even the remote control GUI (which use the same underlying executable, EGC30N.EXE). I have already tried and increasing the messaging timeout (KB000003897) and still see the pop up.
Environment:
Any supported CA Client Automation ITCM ITCA environment
Cause:
communication instability.
Resolution:
Converting the communication between Scalability Server (SS) and Domain Manager (DM) to TCP for CAM, can potentially stabilize unstable UDP communication and eliminate the issue in situations where maintenance and configuration changes have already been tried and been unsuccessful in resolving the issue.

To do this, find CAM.CFG in "%CAI_MSQ%" on the SS machines (or generate one*) and adding a line like the below to the *PATHS section of the file:

<DM name or IP>  protocol = tcp port = 4105

Once this is done, reboot the SS (or recycle CAF, CAM and CSAMPMUX) for the change to take effect. Recycling services on the DM side may not be needed here.

*To generate a new CAM.CFG, the safest way is to run the following commands:

    CAF STOP
    CAM CHANGE DISABLED
    CAM STOP
    CSAMPMUX STOP
    CAM CHANGE AUTO & CAM START -c -l
    CAMSAVE CONFIG

[There will now be a file called 'SAVE.CFG' in "%CAI_MSQ%'. Open this with notepad and remove any existing items in the *PATHS and *ROUTING sections. Next add the line mentioned above and then save and close the file. Rename this file to CAM.CFG at this time]

    CAF START