winbox connect router was rebooted without proper shutdown

hi there,

all the time when i try to access an rb433 with the winbox (router os 5.0) he crashes:
jan/02/1970 01:00:18 system,error,critical router was rebooted without proper shutdown (cause 1)
jan/02/1970 01:00:18 system,error,critical router was rebooted without proper shutdown (cause 1)
jan/02/1970 01:00:18 system,error,critical router was rebooted without proper shutdown (cause 1)
jan/02/1970 01:00:18 system,error,critical router was rebooted without proper shutdown (cause 1)
jan/02/1970 01:00:18 system,error,critical router was rebooted without proper shutdown (cause 1)
jan/02/1970 01:00:18 system,error,critical router was rebooted without proper shutdown (cause 1)
jan/02/1970 01:00:18 system,error,critical router was rebooted without proper shutdown (cause 1)

if i try to connect via ssh everything seems to be stable.. any suggestion?

thanks!

chris

My best guess would be unstable power source.

mhh, but the ssh/telnet still works and looks stable.. only when i try to connect
via tcp 8291…

thanks

chris