- broctl running, no new logs

Hi everyone,

I have a cluster setup for bro 2.5.
After a while, broctl shows all instances are running (workers,proxies and manager) , yet no new log files are written to spool/manager.

broctl cron is enabled, and when I tried to run broctl print Drop::drop_info I get :
manager Drop::drop_info =
worker-0-2 <error: cannot connect to>

any thoughts on the reason for that ?
how can I recover from this besides restarting in response to monitoring new log files ?

Thank you