Have been having major issues resolving this. I am using 2012 R2 ,management point is HTTP. Have attempted updating new MP address in client via ccmsetup and VBscript. Change takes effect on local machine, but it is still not getting connected. I have uninstalled and reinstalled client from server package (server\SMS_<site code>). That makes it come up, but as unmanaged. While researching, I ran across fix directing me to BgbServer.log. What I found is that all the clients are checking in (showing via IP address), but get the following for each (abridged):
Can't find corresponding certificate used in client registration for client
Can't verify signature in message without client certificate for client
Invalid hook to be decoded. Authentication
Failed to decode message body
Failed to process SignIn message from client
ERROR: Invalid message header from client when receive SignIn message
As far as I know, the previous server did not use https (only been here 2 months). CertMgr.log also get the single error - Failed to get connector certificate, bat all other certs come back good. Could I import a cert from client to SCCM to resolve? Am I missing something I can see?
Any input is appreciated.