SCCM Client Certificate (PKI) Value is None Symptoms: Are you seeing the following errors logged? ClientIDManagerStartup.log - Error: 0x87d00231 [RegTask] - Client is not registered. Sending registration request for GUID:12345678...98C1AE ... RegTask: Failed to send registration request message. Error: 0x87d00231 ClientIDManagerStartup RegTask: Failed to send registration request. Error: 0x87d00231 ClientIDManagerStartup LocationServices.log Failed to send management point list Location Request Message to SiteServer.Domain.local 1 assigned MP errors in the last 10 minutes, threshold is 5. CcmMessaging.log Status Agent hasn't been initialized yet. Attempting to create pending event. Successfully queued event on HTTP/HTTPS failure for server 'SiteServer.Domain.local'. Post to https://SiteServer.Domain.local/ccm_system_windowsauth/request failed with 0x87d00231. Failed to open to WMI namespace '\\.\root\ccm' (80041003) Failed in WinHttpSendRequest API, ErrorCode = ...