grantd

I'm having some issues with W10 machines not joining my domain as part of a task sequence in the Apply Network Settings or Join Domain or Workgroup steps (tried both). The ccmsetup log file doesn't show anything relevant, yet at one point, the setuperr.log file showed a NetJoinDomain failed message with error 1335 and an "unable to join" 0x54b error along with that. There weren't many other details that seemed to help find out why this error was appearing. The domain join step takes place at the end of the Install OS group in the task sequence and after the application of drivers (which made us think perhaps they weren't ready when the domain join starts) but even adding in a reboot doesn't seem to fix the issue. Pinging the SCCM server and DC also works fine and the domain join account in the task sequence has the FQDN in front of it since I read something about DNS issues also possible causing similar errors. Is there something I'm missing or any other steps to troubleshoot that anyone would suggest? Any help would be appreciated.