I've had this problem since I purchased the 950 from ATT. I end up having to do a hard reset in order to receive the latest builds. I decided to look at the log file for the Windows Insiders App and saw the following warnings. Can anybody shed any light on these?
02/24/2016 18:28:39 [Warning] [DeviceInformationAccess] Cannot find the FlightingService keys.
02/24/2016 18:28:39 [Warning] [FlightProvisioner] ClientRedir cab download time API is not available on this build: 0x80004005
02/24/2016 18:28:39 [Warning] [FlightProvisioner] CheckEfiFile API is not available on this build: 0x80004005
02/24/2016 18:28:39 [Warning] [DeviceInformationAccess] Cannot find the FlightingService keys.
02/24/2016 18:28:39 [Warning] [FlightProvisioner] ClientRedir cab download time API is not available on this build: 0x80004005
02/24/2016 18:28:39 [Warning] [FlightProvisioner] CheckEfiFile API is not available on this build: 0x80004005