
Hi @Imran Nawaz ,
Thank you so much for your concern, I feel better now.
Great to know that and thanks for sharing the update here.
By the way, since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others.". and according to the scenario introduced here: Answering your own questions on Microsoft Q&A, I would make a brief summary of this thread:
[SharePoint on-premises Search System Status Administrative error]
Issue Symptom:
Hi All, We have a SharePoint 2019 on-premises farm, with every role installed on a separate server. like 2 WFE, 1 App, 1 search, 1 D-cache, and OOS. Recently we upgraded our 3rd party license pfx certificate file in IIS on all farm servers, MMC certificate, personal and Trusted also done. for us and our users the SharePoint sites working fine and no certificate error in the browser. But when we open Application Management-->Manage services application-->Search service application--->the system status/administrative status shows this, "The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel." when we open search server and enter server name in central admin URL, the search status working fine, but in farm URL its giving error which I mentioned. Kindly support how we resolve this issue. we tried all possible steps but were not able to resolve this issue. we need expert solutions from this Forum.
Current status:
The issue was resolved. Actually we remove the certificate in the search server in IIS and the search admin status shows perfectly.
You could click the "Accept Answer" button for this summary to close this thread, and this can make it easier for other community members to see the useful information when reading this thread.
Thanks for your understanding! Have a nice day!