I am trying to set up KDE Connect between a machine running Linux Mint and my Android-device. It does not show up, and it turns out I don’t receive any response if I ping it, and I have the same issue trying to ping the machine from my Android device (from Termux). I’ve tried two different Android devices, but no luck.
This is not an issue with two other machines I have. Both have KDE Connect setup and I can ping the phone just fine, and I can also ping from the phone. They’re all connected to the same VLAN. I can also ping from this machine to the other machines. ufw is disabled.
What could be the issue here?
EDIT: Connection established suddenly after installing and running iptraf.
I would try a LiveUSB with Fedora or another distro with a more up to date kernel and test my wireless card there, if wifi and bluetooth plays nice then you can install a new kernel on Linux Mint and probably have it solved that way.