Access to router lost after setting EtherType to 0x88a8. Recovery possible?

RouterOS General
1

I was experimenting with QinQ and I forgot that I have turned off SafeMode and after setting bridge EtherType to 0x88a8 I lost connection with the router (PVID: 1, Frame Types: admit all, Ingress filtering: I think it was off)

I tried everything I know to get access to the router, but no luck. I don’t want to reset hEX (RB750Gr3) to factory because I have some wireguard configs running to a remote site and I don’t want to drive all the way there to set it up again.

All the ports except ether1 (WAN) are set as the bridge port and all 4 of them are set to have PVID 10. I was smart so I only allowed access to the router on vlan 10 and network 10.1.1.0/24.

Is it possible to gain access to the hEX without factory resetting the router?
I have another mikrotik router that I can use as a client device to test your suggested configs, if necessary.

2

Clearly any port using the bridge is not going to work. But just to confirm you tried Layer2 winbox using MAC address of the ether1 while connected to it?

Did you have RoMON enabled on it, if so it MIGHT show up on another router with RoMON enabled.

3

I did try it with winbox and being connected to ether1 but winbox didn’t discover the device.
Now I entered the MAC address manually and that did the trick. It never occurred to me to write it manually…

Thank you very much!