CMG not reachable

Question

Last week we tried to convert our CMG (classic) to a Azure Scale-Set. I clicked through the wizard and set everything up.

From Azure point of view there is nothing changed. The old Classic CMG is still there and running but MECM thinks he is talking to a Scale-Set which is obviously not there.

SMS_Cloud_Proxyconnection.log

• ERROR: HTTP CONNECTION V2: respond with status code NotFound
• 404 - File or directory not found
• The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable
• ERROR: Failed to build HttpV2 connection

CloudMgr.log

• ERROR: Exception occured for service cmg : System.InvalidOperationException: VM scale set does not exist and cannot update the service configuration.~~ at Microsoft.ConfigurationManager.CloudServicesManager.UpdateServiceConfigurationTask.Start(Object taskState).
• ERROR: Service cmg does not exist.

CMG Connection Analyzer

Check CMG service is in ready state > Yellow 2
Connect to CMG service to see if it's running > Green
Check configuration > Red > Version should be xxx
Check connection status of CMG connection points > Yellow > Our MP is not connected
Check CMG enabled site system roles > Green
Testing the CMG channel for MP xxx > Red > Failed to get ConfigMgr token with Azure AD token. Status code is '500' and status description is 'CMGService_No_Connector'. A possible reason for this failure is the CMG service failed to forward the message to the CMG connection point. There is no CMG connection point that is connecting to the CMG service.

Is there a possibility to restart the Convert Process or to change the setting that this CMG is a classic not a Scale set?

I think i could just create a new CMG but Users in homeoffice without VPN won't be able to connect
I'm using Version 2111 with the latest hotfix. Our CMG was fully functional before the conversion.

Thanks in advance for any feedback

Answer 1

I modified the DNS Record but still the same issue.
When i check the Azure RG i used in the Setup there are no resources created as well

ERROR: Exception occured for service ttgcmg : System.InvalidOperationException: VM scale set does not exist and cannot update the service configuration.~~ at Microsoft.ConfigurationManager.CloudServicesManager.UpdateServiceConfigurationTask.Start(Object taskState).

Answer 2

Hi, @Florian K

Thank you for posting in Microsoft Q&A forum.

I haven't try this operation, you may try to ask your question at the bottom of this post to see if you can get a reply:
https://sccmentor.com/2021/08/09/converting-to-virtual-machine-scale-set-cmg/

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