hi friends
i have a 1200 router that reboot.when i plug power cable to router router boot and have beep sound and again reboot
i can connect it becuse dosent boot and just reboot
what should i do for this problem?
You should reinstall this device with Netinstall to the latest version of RouterOS (6.27).
If problem persist, then connect to serial console and check what you can see while device is booting up.
http://wiki.mikrotik.com/wiki/Manual:Netinstall
http://www.mikrotik.com/download
hi
i cant reisntall becuse cant connect to device at all.device just boot and after beep reboot again
try a hard reset using the reset contact on the board. also look at the capacitors if they are “inflated”.
I had myself a few 1200 going “lulu” 
a couple I managed to restore but I’m not using them in production anymore. I found them a bit unreliable…
try as well changing the power adapter inside…
S
i changed power adapter but problem not resolve.i use hard reset but dosent work
Few days ago I throw away my two last 1200. Very unrealible device. Replaced it with 2011…