Replacing an Archer A7 with a new A20. I have a macmini that I want to be able to connect to over ssh and ftp. I assigned the mini a static local ip (192.168.0.111) and then forwarded ports 21 and 22 to that ip by going to Virtual Servers and setting, for example:

External Port: 22

Interal IP: 192.168.0.111

Internal Port: 22

Protocal: All

Status: Active

Now colleagues can successfully ssh in to the mini using:

ssh their_username@my_external_ip

I can also ssh in to the mini from the local network using

ssh my_username@192.168.0.111

However I CANNOT ssh in to the mini from my local network using

ssh my_username@my_external_ip

This used to work fine on my A7 so I have no clue what is wrong. For the moment I can survive by just being careful about using the internal IP when I'm connected to the A20 at home and then using the external IP when I'm on the go. However, this basically breaks tools like mosh and autossh so it is not a long term solution. Anyone have ideas what I'm misssing or what setting I need to change to get the A20 back up to the functionality I had on the A7?

Thank you !