RB750GL upgraded to 6.3 - not starting-solved

Hy guys, since last night the 6.3 routerOS was released, i upgraded my rb750gl from 5.25 to 6.3

the upgrade was a succes, but when i did a restart of the sistem, everything has crashed.
Note: rb750gl had aprox 1h of uptime with the 6.3 working fine.

After hard reset-
problem :

  1. rb750 is not responsive to previous config
  2. rb750 is not responsive to default config
  3. Restarting the router did not solve the problem
  4. Netinstall is working, i can flash the board with, 5.25, 6.2, 6.3 - no result.(flashing seems to be fine, the board is resetting , still the router seems not to boot correctly.)
  5. Dhcp not working, if client set to manual ip (192.168.88.3) is not receiving any packets.


    Solved - seems like the router was accesible only by the mac.



I think 6.3 doesn’t have a default config, so you have to use mac-winbox