SAILOR VSAT software 1.62 and below.
A 0806E-0, VMU Reference Signal event, will show if the 50 MHz VMU Reference Signal disappears while the ADU is tracking. However, rebooting the ACU will clear the event, and causing the ACU to remain in READY state, waiting for a pointing request from the GMU. Simultaneously the GMU will detect “BUC unlocked” (Caused by the missing 50 MHz) causing it not to send a pointing request to the ACU.
Result: ACU in READY state, GMU in WAIT state.
Now it can be hard to tell where the problem is.