2 компа с 2мя сетевыми картами Win 10 x64 - не видит, у 2011 есть консоль, в ней можно остановить его и зайти выполнить команты и вроде как загрузить прошивку
RouterBOOT entering the game
When rebooting a RouterBoard the bootloader (RouterBOOT) will always use the serial console (serial0 on RouterBoards) to send out some startup messages and offer access to the RouterBOOT menu.
Having text coming out of the serial port to the connected device might confuse your attached device. Furthermore in standard config you can enter RouterBOOT menu by pressing ANY key. So if your serial device sends any character to the serial port of your RouterBoard during boot time, the RouterBoard will enter the RouterBOOT menu and will NOT boot RouterOS unless you manually intervent!
You can reconfigure RouterBOOT to enter the RouterBOOT menu only when a DEL character is received - use this to reduce the chance to get a router that's stuck when rebooting!
Or if newer versions are used "Silent boot" feature can be used to suppress any output on the serial interface, including removal of booting sounds.
https://wiki.mikrotik.com/wiki/Manual:RouterBOOT