Hi,
I just bought a brand new RB1200 router , created a simple config (ROS 5.2) and after I issued a command to restart it never comes back online again. Tried mac-telnet to access it but not successful. The indication is it is not booting at all any more.
Does anyone have information or experience like this with this kind of router. I’m looking on ways to factory default but no manual in rb sites is available.
Connect a serial cable (115200 baud) and see what the console says.
I have no output at all from the console port. Any other idea.
If there’s nothing at all on the console then it’s dead. Try to RMA it through the vendor you bought it from.
Have you tried unplugging the power and waiting 30 seconds. On our RB1200 if you unplug the power and don’t wait a few extra seconds it won’t come up. Count to 30 before plugging it back in. 
This is sorted out, according to support this is a bug. See below.
Hello,
Thank you for reporting this problem. It is detected and will be fixed in
next RouterOS releases.
Regards,
\
Hi support,
I’ve bought a brand new RB1200 router and configured it in a way where ports
eth1,eth2 are routing traffic and disabled all other ports. All was working
fine but a single system reboot command makes the router unusable any more
as it passes no more traffic after this. The only way to make it work is to
connect via serial console and enable all disabled ports (which were not
used anyway) which is not a correct behavior.I’ve attached the supout file for your reference.
BR,