Connect to AirVPN with Android on Voom internet

[bdr 4]

I'm on an international cruise and connected by Voom internet on board. From what I've read online, Voom is notorious for blocking VPNs, even using deep packet inspection (DPI) to do so. (They even block access to the airvpn.org *website*, so I'm on a mobile network on land at the moment to write this.) I'm using a Pixel 6 on Android 16.

Connecting normally via UDP or TCP do not work on any port, including 53, 80, and 443 -- it just sits there without ever connecting to the server.

I tried connecting using the "SSH-Tunneled VPN on Stock Android" tutorial here. When I use ConnectBot and de-select "Start shell session", I just get a blank terminal screen. If I then try to connect with the ovpn profile in OpenVPN for Android, it just sits and waits for the server reply.... but there is never a response. When I select that "Start shell session" option, I get a "permission denied (pubkey)" error. I followed the instructions to a tee, and double-checked everything -- host, port, port forwards, using `sshtunnel.key`, etc 

I also tried manually creating the SSH tunnel with Termux, but I just get the same "permission denied (pubkey)" error.

For SSH connections with both ConnectBot and Termux, I tried with configurations from the AirVPN config generator using SSH ports 22 and 38915 and entry IPs 1, 3, and 4. But I got the same pubkey error in all situations.

What am I doing wrong?

[bdr 4]

To add to this, I just tried to set up SSL tunneling using this: [How-To] AirVPN via SSL/stunnel on Android 6/7/8, although I had to adjust a few things since Android has changed the way user permissions work since that was written... However, I still was not able to get it to work with SSL tunneling. I got a "certificate verify failed" error.

I've attached the full log from OpenVPN for Android and the output in Termux while OpenVPN was trying to connect, in the hopes that someone sees something I'm missing...

Any ideas of why it is failing?

openvpn_for_android_log.txt ssl_with_openvpn.txt