I understand what's going on here, but how do I go about resolving it? The incorrect address is read from registry: "Retrieved MP [IP address] from Registry" and errors regarding sending of status and data are observed in log. When I check the LocationServices.log file, I see the following errors: Unable to Find Lookup MPs in Registry, AD, DNS and WINS Failed to resolve 'SMS_SLP' from WINS LSIsSiteCompatible: Failed to get site version from all directories. [LOG[Group Policy Site Assignment key HKLM\Software\Microsoft\SMS\Mobile Client has changed, will attempt to re-assign the client. How do I check if it is the cert on the AD server? Couldn't do my job half as well as I do without it! AD was restored from backup and DHCP was recreated to the same config it was before. [LOG[Attempting to retrieve default management point from WINS]LOG]!>