All, I just finished my third try to insert my first routerboard/routerOS system into my WISP network! First time, I thought it was one of the 3 radios I was using (see previous thread http://forum.mikrotik.com/viewtopic.php?t=13506 ).
The second time I had a senao nmp2511, an SR2, and a CM9 radio, and it kept rebooting. I noticed the 2 beeps on bootup had a weak (lower tone) second beep.
Thinking it was a POE/power supply problem, I went straight to the power plug with a good 48V supply. No flashing blue leds, no funny sounding beeps, however, on one of its reboots, it beeped 3 times. It kept booting up, one beep, then 50sec later 2 beeps. Everything came on, 2 radios carried ~400Kb backhaul traffic, AP associated with 16 CPEs. Then reboot. During one of the 2 minute uptimes, I quickly logged in and disabled all watchdog stuff. When the next event happened, the unit was unresponsive for 3 minutes. At that time I HAD to fall back to my 3yr old sokeris board system.
BTW, I have 2 rb153s, and did try 1 with one I burned in at home for a week, and trys 2 and 3 with a fresh board.
I can't reproduce this on the bench, and I don't want to keep inflicting these outages on the 45 customers affected. help!