debcrafters-packages team mailing list archive

[Adarsh Kumar <2117448@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

After disabling IPv6 via sysctl.conf (by setting
net.ipv6.conf.all.disable_ipv6 = 1 and
net.ipv6.conf.default.disable_ipv6 = 1) on Ubuntu 24.04 LTS, WiFi
connectivity becomes unstable. NetworkManager repeatedly fails to assign
IPv6 addresses and throws multiple “Permission denied” errors related to
do-add-ip6-address. Even after removing those lines and rebooting, the
issue persists intermittently — WiFi shows a question mark icon, and the
connection randomly drops until I manually open the network menu.

This issue occurs on a laptop with an ath10k wireless driver.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: network-manager 1.46.0-1ubuntu2.2
ProcVersionSignature: hostname 6.11.0-29.29~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-29-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Jul 22 04:03:10 2025
InstallationDate: Installed on 2024-08-23 (332 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
IpRoute:
 default via 192.168.1.1 dev wlp2s0 proto dhcp src 192.168.1.64 metric 600 
 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown 
 192.168.1.0/24 dev wlp2s0 proto kernel scope link src 192.168.1.64 metric 600
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/usr/bin/zsh
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf:
 [connection]
 wifi.powersave = 2
mtime.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf: 2025-07-22T03:22:27.020795
nmcli-nm:
 RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  WIFI     WWAN-HW  WWAN     
 running  1.46.0   connected  started  full          enabled     enabled  enabled  missing  disabled

** Affects: network-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble wayland-session

-- 
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https://bugs.launchpad.net/bugs/2117448

Title:
  WiFi fails to connect after disabling IPv6 in sysctl.conf on Ubuntu
  24.04

Status in network-manager package in Ubuntu:
  New

Bug description:
  After disabling IPv6 via sysctl.conf (by setting
  net.ipv6.conf.all.disable_ipv6 = 1 and
  net.ipv6.conf.default.disable_ipv6 = 1) on Ubuntu 24.04 LTS, WiFi
  connectivity becomes unstable. NetworkManager repeatedly fails to
  assign IPv6 addresses and throws multiple “Permission denied” errors
  related to do-add-ip6-address. Even after removing those lines and
  rebooting, the issue persists intermittently — WiFi shows a question
  mark icon, and the connection randomly drops until I manually open the
  network menu.

  This issue occurs on a laptop with an ath10k wireless driver.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: network-manager 1.46.0-1ubuntu2.2
  ProcVersionSignature: hostname 6.11.0-29.29~24.04.1-generic 6.11.11
  Uname: Linux 6.11.0-29-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  CRDA: N/A
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Jul 22 04:03:10 2025
  InstallationDate: Installed on 2024-08-23 (332 days ago)
  InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
  IpRoute:
   default via 192.168.1.1 dev wlp2s0 proto dhcp src 192.168.1.64 metric 600 
   172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown 
   192.168.1.0/24 dev wlp2s0 proto kernel scope link src 192.168.1.64 metric 600
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/usr/bin/zsh
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  modified.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf:
   [connection]
   wifi.powersave = 2
  mtime.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf: 2025-07-22T03:22:27.020795
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  WIFI     WWAN-HW  WWAN     
   running  1.46.0   connected  started  full          enabled     enabled  enabled  missing  disabled

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