CMG Proxy connector log errors

Question

Hi, we have just setup a CMG. COnnection anaylser is all green, CMG logs on CAS are all ok, but the SMS_Cloud_proxyconnector.log on one of the primary site server keeps giving out this error:

Maintaining connections... SMS_CLOUD_PROXYCONNECTOR 9/15/2021 12:16:35 PM 101984 (0x18E60)

There are 10 Http connections established with proxy server CMGNAME:443 SMS_CLOUD_PROXYCONNECTOR 9/15/2021 12:16:35 PM 101984 (0x18E60)
Wait 60 seconds to rescan the connections... SMS_CLOUD_PROXYCONNECTOR 9/15/2021 12:16:35 PM 101984 (0x18E60)

ERROR: Failed to handle response from server. Could be intermittent network issue. Exception: System.Net.WebException: The underlying connection was closed: The connection was closed unexpectedly.~~ at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)~~ at Microsoft.ConfigurationManager.CloudConnection.ProxyConnector.HttpConnection.HandleResponseCallback(IAsyncResult asynchronousResult, Int32& statusCode, Byte[]& payload)~~ at Microsoft.ConfigurationManager.CloudConnection.ProxyConnector.ConnectionBase.ResponseCallBack(IAsyncResult asynchronousResult) SMS_CLOUD_PROXYCONNECTOR 9/15/2021 12:16:41 PM 119000 (0x1D0D8)
Maintaining connections... SMS_CLOUD_PROXYCONNECTOR 9/15/2021 12:17:35 PM 101984 (0x18E60)
Any ideas what could be the issue?

Already tried test-netconnection -computername "CMGname" -port 443 and it's ok.
Thks in advance and don't hesitate if you have any questions

Answer 1

I have seen those errors on a working CMG as well. Question is does your CMG actually work? Have you tested any deployments?

Answer 2

Hi, @Stéphane Lalancette
Thank you for posting in Microsoft Q&A forum.

You may try to remove the "Cloud Management Gateway connection point role" from site server and then add it back.
Administration - Site configuration - Servers and Site System Roles

Here is the reference:
https://techcommunity.microsoft.com/t5/system-center/cmg-broken-after-upgrade-to-mecm-2002-resolved/m-p/1472925

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Answer 3

What do you see in ccmmessaging log on cleint side?