Management Point Rejected policy request

• Check the Client GUID (e.g, GUID:D06707E1-69E6-485D-B3F3-6678511C53A2).

Run The Query Log on to SQL Server Management Studio and run this query against SCCM database
select * from dbo.system_data where smsid0 = 'GUID here'

• It will give you the PC name, then locate PC in SCCM collections, uninstall SCCM client then reinstall the client.