I’m using the version 0.13.10 on a Linux mint machine.
I can only access the WebUI on my local network, if I try in any other it doesn’t work. I have already opened the port(39280) in the firewall and my router firewall isn’t active. What else have I forgot? I have qBittorent WebUI set up on port 8080 and it’s working fine, so it must be something not configured right.
Maybe you forgot to forward the port in the router?
By the way, if you already have remote ssh access to the machine, forwarding the WebUI port over ssh is often an easy and secure option. You don’t have to configure port forwards or firewalls and it’s encrypted by default.
Of course, you also have to forward the ssh port if you want to access it from outside the local network. But that was just a suggestion in case you already had a working ssh setup.
In either case, you need a port forwarding rule in your router unless your server has a public IP address. How it is set up depends on your router model and you should consult the router’s manual or search for the instructions online.