Can't reach my Android device from Linux Mint
Can't reach my Android device from Linux Mint
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 fixed this on my EndeavourOS machine by enabling kdeconnect in the firewall settings.
ufw is disabled, so it shouldn't matter if it is set up or not, right? As far as I can tell I don't have any other firewall software running - I've not installed anything, so it would be the default Linux Mint-stuff that I would have installed and enabled in that case.
if you decide to turn ufw back on:
sudo ufw allow 1714:1764/udpsudo ufw allow 1714:1764/tcpThis. And check that no device uses a VPN
Related, but just hanging this on here. As the default (as installed) security of distributions has improved, so have the amount of headaches when trying to use tools like this increased. For decades, when I've had issues like this is not been because of a LAN firewall issue, and so now my first thought is never been, "I should check the firewall," when it should.
Sadly, firewall info is almost always locked down so that apps can't even check by themselves and provide helpful hints to users.
Anyway, it's been a hard lesson for me to learn, for some reason. I need to practice my mantra: it's always the firewall.
Its crazy, on Windows programs seem to be able to poke holes in the firewall themselves.
Install iptraf on the machine that's being troublesome, to see if the ping traffic even registers on the interface
Very strange - I just installed it, and as soon as I ran it, the output in Termux went from "Destionation Host Unreachable" to responses from my machine. Outbound pings from my machine also now get a response. I assume this was only supposed to help diagnose and not fix the issue? :p
KDE Connect is still acting up though, but at least they can talk to each other now! Thanks :)
With your EDIT my first thought was "Have you tried turning it off and on again?".
Hehe yeah, this persisted over several days and through several reboots and on two different phones. No clue what changed as I understood iptraf to simply help me diagnose. But a run directly before and after running iptraf for the first time had different results, and now I am reproducing it every time.
Which version of KDEConnect do you run in Linux Mint? Seems like they package an old version from what I gather when searching for answers:
https://discuss.kde.org/t/can-not-pair-android-phone-and-linux-mint-21-1-desktop-with-kde-connect/1455
https://old.reddit.com/r/linux/comments/1b5fvay/how_do_users_of_mint_or_other_debianbased_distros/Are your other machines running distros with more up to date repositories?