NetworkManager constantly changing the policy between two interfaces

Support Network
1

I’ve noticed some weird since the last update. NetworkManager is reporting a constant switch in policy between the WIFI and Wired connections:

Jul 27 19:36:23 pavla NetworkManager[815]: <info>  [1627407383.9187] policy: set 'Wired connection 1' (enp59s0u1) as default for IPv6 routing and DNS
Jul 27 19:36:24 pavla NetworkManager[815]: <info>  [1627407384.7372] policy: set 'wifi-redacted' (wlp2s0) as default for IPv6 routing and DNS
Jul 27 19:36:24 pavla NetworkManager[815]: <info>  [1627407384.7377] policy: set 'Wired connection 1' (enp59s0u1) as default for IPv6 routing and DNS
Jul 27 19:36:26 pavla NetworkManager[815]: <info>  [1627407386.9899] policy: set 'wifi-redacted' (wlp2s0) as default for IPv6 routing and DNS
Jul 27 19:36:26 pavla NetworkManager[815]: <info>  [1627407386.9905] policy: set 'Wired connection 1' (enp59s0u1) as default for IPv6 routing and DNS
Jul 27 19:36:27 pavla NetworkManager[815]: <info>  [1627407387.8093] policy: set 'wifi-redacted' (wlp2s0) as default for IPv6 routing and DNS
Jul 27 19:36:27 pavla NetworkManager[815]: <info>  [1627407387.8100] policy: set 'Wired connection 1' (enp59s0u1) as default for IPv6 routing and DNS
Jul 27 19:36:29 pavla NetworkManager[815]: <info>  [1627407389.8571] policy: set 'wifi-redacted' (wlp2s0) as default for IPv6 routing and DNS
Jul 27 19:36:29 pavla NetworkManager[815]: <info>  [1627407389.8575] policy: set 'Wired connection 1' (enp59s0u1) as default for IPv6 routing and DNS

I always have my laptop’s wifi turned on, because I move between places very often. At home, I connect using an Ethernet cable to my router (via USB-C adapter).

Since the update when I connect the cable (after being connected via wifi) NetworkManager starts that continuous switch. Even after turning the wifi off, it keeps telling:

Jul 27 19:38:26 pavla NetworkManager[815]: <info>  [1627407506.8570] policy: set 'Wired connection 1' (enp59s0u1) as default for IPv6 routing and DNS
Jul 27 19:38:27 pavla NetworkManager[815]: <info>  [1627407507.7893] policy: set 'Wired connection 1' (enp59s0u1) as default for IPv6 routing and DNS
Jul 27 19:38:29 pavla NetworkManager[815]: <info>  [1627407509.8592] policy: set 'Wired connection 1' (enp59s0u1) as default for IPv6 routing and DNS
Jul 27 19:38:30 pavla NetworkManager[815]: <info>  [1627407510.7886] policy: set 'Wired connection 1' (enp59s0u1) as default for IPv6 routing and DNS

I need to unplug my laptop from the Ethernet cable and plug it back, for it to stop doing that.

Is this normal/expected or a bug?

2

Hi!

It looks like those messages are just informational. I wouldn’t be concerned about them unless you’re experiencing disruptions in connectivity.

I couldn’t find a relevant bug report upstream.
Feel free to take a look/report there if you think this is a bug.

Hope the above helps!

1 Like
3

I do have been experiencing some issues with connection. Connections may take a while to get established, once the connection is established bandwidth is normal.

I was considering it was an issue with ufw, but then these logs looked suspicious. Since those messages say the routing is changing I though there was a relation.

I would have to keep digging.

4

The messages are IPv6 messages - try disabling IPv6.

5

I reinstalled Manjaro two days ago; now when I do the same as before, the constant logging is fixed.

6

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