If the issue is teach in the HN boards, i'm sure.
-TECCR-clear the existing programming
-TECC- to learn all the communications devices including HN's, of course.
VERIFICATIONS (CHECKS)
-TECF (if one access) TECR (for 2nd access)-check if there's any HN faulty.
-DHNF (if 1 access)- show the states of all HN's (version, communicating or not, etc)
-DHNR (for 2nd acccess).