PVID

[holvoetn]

Interesting read:

Rules of the Mikrotik Club:

1. You do not use VLAN1
2. You DO NOT use VLAN1
3. You remove default user admin and set a strong password before connecting to the internet.
4. You do not use Quickset.
5. You do not use detect internet.
   6)…

Now #6 might be added as either:
6) You set automatic updates for routerboard firmware but not for ROS.
or
6) You do not set automatic updates.
.

And then this:

@mibarra88

Actually VLAN ID 1 is no different than others. If everything is configured correctly, also VLAN 1 should work just fine. But there’s a gotcha: VLAN ID 1 is used as default all over the place, it is not shown in output of export (since it’s default) - unless export is run with verbose option. So it’s really easy to miss some VLAN ID 1 setting somewhere where it should not be and sometimes it’s hard to get rid of that setting as well. Hence the easiest way of not getting into trouble is to stay away from using VLAN ID 1.

Which means you should not just change a port PVID without first making sure pvid=1 (and VLAN in general) is handled correctly all over the place on those Mikrotik devices.
Or things will break …