I keep getting "Status: slave" message on the flight computer, when i have decoupled a probe from a larger vessel. For example, when trying to set up an omni network of 4 relays all launched as a single vessel, I got this message from 3 of the probes (all but the first one decoupled).
What is the cause? How do I fix it?
Set flight computer delay to 10 minutes or however long you need before reentry is complete. Toggle the comms (or you can also use this approach to toggle other stuff needed during the reentry, such as chutes, retrorockets, airbrakes, legs and so on). Set delay to 0 and now close your panels and other fragile stuff then finally the comms. Et voila. Your comms closes, and will open when your first more-delayed command is executed.