The connection breaks immediately.

[rbalashevich]

Dear team, I am sad.

1. Client v1.4.0, server v1.1.14
2. All the ports forwarded and opened in ufw
3. Keypair checked out carefully

In DEBUG hbbs' log I see incoming connection, but it breaks immediately. Red dot in client.

May it be server & client incompatibility?
Which versions work?
Do I need to open UDP ports specifically or TCP protocol is enough?

Update: it seems UDP port is mandatory!

ufw allow 21114:21119/tcp
ufw allow 21116/udp

Not a bug but please make a note in the doc about packets flow. Thanks.

[rbalashevich]

Here is a good place for note about UDP protocol:
https://github.com/rustdesk/rustdesk/wiki/How-does-RustDesk-work%3F