I got these error messages in the WCM.log when I was trying to sync the Software Updates in SCCM:
Microsoft.UpdateServices.Administration. Error = 0x80131701
Remote configuration failed on WSUS Server
I have the SUP role and WSUS installed on a remote site server, but the Primary server was unable to locate the WSUS database located on a remote SQL server.
DB Server not detected for SUP ServerName from SCF File. skipping.
Run this PowerShell command elevated on the Primary server and then restart the SMS_Executive service.
Install-WindowsFeature -Name UpdateServices-ui
It installs the necessary WSUS files on the Primary server without installing the full WSUS console.