Error 0xC1100121

Value: -1055915743 | 0xC1100121 | 3239051553

What does it mean ?

WDSTPTMGMT_E_TFTP_MAX_BLOCKSIZE_NOT_SUPPORTED  
The Windows Deployment Services Transport Server does not support the TFTP maximum block size setting.
Value: 289 | 0x0121 | 0b0000000100100001

Where does it come from ?

FACILITY_DEPLOYMENT_SERVICES_TRANSPORT_MANAGEMENT  
Windows Deployment Services (WDS) Transport Management
Value: 272 | 0x110 | 0b100010000

StackOverflow

Other Errors for FACILITY_DEPLOYMENT_SERVICES_TRANSPORT_MANAGEMENT