Changing/removing a master-port disconnects from a router

RouterOS General
1

Hello,

I have a Mikrotik router with 5 ports. By default ether2-master is a master port for the ports 3-5. If I try to change it - I’m disconnected from the router, so I have to reset it to get the connection back.

So far I’ve tried:

  1. to remove everywhere a master port setting;
  2. to set ether4 as a master port;

..no luck. In the first case ether2 is the only working port, in the second - when I set a master port for ether2 - I have to reset the router again to get the connection.

Please help - how do I change/remove the master port? ether2 seems somehow special. I want ether1 to be for WAN, and ports 4-5 for my local usage, ports 2-3 will be disabled.

2

The way RouterOS older than 6.41rc works is that the switch chip is managed through the “master-port” by default that’s ether2 as you’re finding out. You can change that, I personally drop everything master-port related and have been strictly running on the new bridge that replaces this nightmare.

To achieve the configuration you want on non-6.41rc software you’ll need to move the master-port to ether3 or ether4 and set the ports up according to that.