Hi there. I have purchased a Hologram Nova board and am using it with the SIM supplied, hence with the hologram APN.
My application, running on a Raspberry Pi, requires an outgoing SSH bridge to my server. With an Ethernet cable plugged into the Raspberry Pi I can make the SSH connection, however the SSH connection always fails over the cellular link through the Nova modem; SSH can see the server over the cellular connection but the SSH connection attempt always times out. I’ve tried various ports (22, 80, 5050) all to no avail: the connection never gets through. Plug Ethernet in and the connection works.
Are there any known restrictions on outgoing SSH connections when using the hologram APN?