CMG Proxy connector log errors

Stéphane Lalancette 191 Reputation points

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

Microsoft Configuration Manager
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  1. Rahul Jindal [MVP] 9,471 Reputation points MVP

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

  2. AllenLiu-MSFT 41,691 Reputation points Microsoft Vendor

    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:

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  3. Rahul Jindal [MVP] 9,471 Reputation points MVP

    What do you see in ccmmessaging log on cleint side?

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