Tue Mar 22, 2022 8:33 pm
It's not a blocked port. Because then nothing would happen
It is really a port already in use.
See what other ports you can use.
12321 is default Mikrotik in Help pages, I think.
Anything from 10000 to 65535 can be used.
But it needs to be open, as in: not used by anything else.
Obviously it needs to pass whatever firewall is in between...