Outbound ssh won't work with firewall set to Medium
I am looking at my xfinity modem/gateway Firewall web page logged in as administrator. When it's set to "Typical Security (Medium)", I am not able to use ssh to log into Amazon Web Services EC2 instances. I tried "Custom", and discovered that if I check "Block Peer-to-peer applications", outbound ssh (LAN-to-WAN) doesn't work on port 22.
Does anyone know how I can allow ssh but disallow other peer-to-peer applications in the Xfinity device?