Deployment Status Unknown.

Dear All,

We are having a strange issue where Patched SCCM clients are showing as “Unknown” deployment status.

However, when same is checked in the reporting tool of SCCM, those server DO NOT appear under “unknown”

Investigations and tests:

1. The boundary group corresponding to the servers did not exist.
   1. Same has been created but the deployment status of the servers are still showing as “unknown”.

2. A new deployment group, software update group and collection was created and applied on 2 Test Servers
   1. But same issue has been observed.

3. WSUS target, Firewall and telnet were checked 
   1. WSUS points to the correct path

2. Firewall is off on the machines

3. Telnet to the wsus/sccm on port8530 is successful.

4. On the SQL DbAffected server is reporting the last evaluation to be on 26 October 2019

2. However, on the server itself, the last evaluation is dated to be 04 Nov. 19

5. Also, the results of the evaluation shows that all tests were passed.

Applied till now:

http://get-cmd.com/?p=4367

https://smsagent.blog/tag/client-check-result-no-results/

https://smsagent.blog/2016/02/12/reading-ccmeval-results-directly-from-a-configmgr-client-with-powershell/

https://social.technet.microsoft.com/Forums/en-US/6a307f01-2fbf-4ded-b46d-3ab29921713f/sccm-2012-clients-status-unknow?forum=configmanagersecurity

Any help/ opinion is welcomed.

Thanks in advanced.

Devesh