For a few days, I have experienced this problem, but only on Android devices.
I would say that this started with updating Syncthing to v1.8.0, but after I noticed the issue, I tried to downgrade to v1.7.0 and the problem was still there, so I am not sure whether there is any connection here.
I have found Local discovery multiple instances: bind already in use, and following the advice enabled STTRACE=beacon. This is how the output looks like:
2020-08-16 19:20:18 Enabled debug data for "beacon"
2020-08-16 19:20:27 recv 135 bytes from [fe80::f897:3060:a9c6:a3c%wlan0]:61760
2020-08-16 19:20:27 recv 135 bytes from [fe80::f897:3060:a9c6:a3c%wlan0]:61760
2020-08-16 19:20:27 recv 135 bytes from [fe80::f897:3060:a9c6:a3c%wlan0]:61760
2020-08-16 19:20:27 recv 135 bytes from [fe80::f897:3060:a9c6:a3c%wlan0]:61760
2020-08-16 19:20:27 recv 135 bytes from [fe80::f897:3060:a9c6:a3c%wlan0]:61760
2020-08-16 19:20:32 write udp [::]:58092->[ff12::8384]:21027: sendmsg: network is unreachable on write to [ff12::8384]:21027 rmnet0
2020-08-16 19:20:32 write udp [::]:58092->[ff12::8384]:21027: sendmsg: network is unreachable on write to [ff12::8384]:21027 rmnet1
2020-08-16 19:20:32 write udp [::]:58092->[ff12::8384]:21027: sendmsg: network is unreachable on write to [ff12::8384]:21027 rmnet2
2020-08-16 19:20:32 sent 340 bytes to [ff12::8384]:21027 on p2p0
2020-08-16 19:20:32 addresses: [10.0.0.255]
2020-08-16 19:20:32 sent 340 bytes to 10.0.0.255:21027
2020-08-16 19:20:32 sent 340 bytes to [ff12::8384]:21027 on wlan0
2020-08-16 19:20:32 recv 340 bytes from 10.0.0.6:49513
The rest of the log seems to basically repeat itself, but if you need more information, I can upload the whole thing.
Do you have any idea what the problem could be? What can I do to try to troubleshoot this?
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