Network Manager bug constant reconnecting and CPU usage

[MF]

Anyconnectin result cpu heavy usage. constant reconnections wifi/ethernet..no matter

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: network-manager 1.36.4-2ubuntu1
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sun May 1 17:00:00 2022
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2017-06-03 (1793 days ago)
InstallationMedia: Kubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
IpRoute:
 default via 192.168.1.1 dev enp5s0 proto dhcp metric 100
 169.254.0.0/16 dev docker0 scope link metric 1000 linkdown
 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
 192.168.1.0/24 dev enp5s0 proto kernel scope link src 192.168.1.148 metric 100
SourcePackage: network-manager
UpgradeStatus: Upgraded to jammy on 2022-04-25 (6 days ago)
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.36.4 connected started full enabled enabled enabled enabled disabled

[MF (mmuruev)]

If id just disconnects wifi or ethernet cable everything return to normal. Which make sending report very difficult. Seems like this is not a wifi driver issue. But it makes the system unusuable.

[Sebastien Bacher (seb128)]

Thank you for your bug report, could you add a 'journalctl -b 0 > log' record to the bug after triggering the issue?

[MF (mmuruev)]

required log

[Sebastien Bacher (seb128)]

the log has 'miredo' errors, do you need that component or could you try without it?

[MF (mmuruev)]

I'm not sure never used it directly this is a kinda ipv4 to ipv6 tunnel I suppose. Not much use for me now. How I can disable it.

[Sebastien Bacher (seb128)]

It's not installed by Ubuntu by default so you installed it. If you are not using it then simply

$ sudo apt remove miredo

and restart your system and see if that resolve the issue

[MF (mmuruev)]

Yes I checked. Seems after remove the package system works as expected.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

reassigning to miredo then since it seems to be an issue due to this component

[Zetetic (zeteticus)]

I have the same issue with the miredo package version 1.2.6 on Kubuntu 22.04.01. The service reconnects to the public Teredo server every 30 seconds. For me personally, it is a critical issue because Miredo is the only way I can access IPv6 servers.