I have got a tenant with 3x AVD session hosts, AAD joined and enrolled to Intune. The enrol is processed during the provision of the AVD session hosts. Now the session hosts have been running for 2 months but I have found scripts and apps were not deploying. Found two of the 3 no longer appears in Intune after noticing the Intune management extension service no longer existed. I have raised a case with my CSP but this can take a while, So in the mean time I have deployed 3 new hosts. All registered in Intune but after time one disappeared, another I can see the service has disappeared.
the following is reported in the intuneManagmentExtension.log then the service shuts down
Add MdmDeviceCertificate E81631447F06C4B9923647XXXXXXXXXXXXXXXX into WebRequest
[SendWebRequestInternal] Sending network request... Current proxy is https://fef.amsub0502.manage.microsoft.com/TrafficGateway/TrafficRoutingService/SideCar/StatelessSid...
[IsWebExceptionRetryable] web exception status = ProtocolError
statuscode is 400
[SendWebRequestInternal] Web Exception occurs when sending network request, non-retryable, the exception is System.Net.WebException: The remote server returned an error: (400) Bad Request.
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.Management.Services.IntuneWindowsAgent.AgentCommon.EmsServiceBase.<SendWebRequestInternal>d__15.MoveNext()
[ServiceBase] Non-retriable web exception happens with check in app id, ex = System.Net.WebException: The remote server returned an error: (400) Bad Request.
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
at Microsoft.Management.Services.IntuneWindowsAgent.AgentCommon.EmsServiceBase.<SendWebRequestInternal>d__15.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.Management.Services.IntuneWindowsAgent.AgentCommon.EmsServiceBase.<SendWebRequest>d__16.MoveNext()
