Network problems

General Help
5

Network Connection Activation Failed

The "Activation of Network Connection Failed" error in Ubuntu 22.04 typically indicates a failure to connect to a network due to configuration or hardware issues. Common causes include incorrect network settings, driver issues, or hardware incompatibilities.23

To resolve this issue, you can try the following steps:

  1. Disable and Enable the Network Connection : This can reset the network settings and allow the system to reconnect with the router and update its IP or DNS settings.2
  2. Check and Modify Network Manager Configuration : Ensure that the renderer is NetworkManager in the /etc/netplan/ directory. Verify the /usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf file to ensure Ethernet, WiFi, and WireGuard are set as exceptions.34
  3. Update Your Linux Kernel : Updating the kernel can fix bugs, improve performance, and solve hardware compatibility issues that may cause network problems.5
  4. Blacklist Other Communication Devices : Blacklisting Bluetooth or additional network adapters can prevent interference with your primary network connection.2
  5. Remove Unused Bluetooth Devices : Removing old paired devices can reset the Bluetooth stack and help your system focus on new connections.2
  6. Disable Fast Boot : Disabling Fast Boot in Windows can fix issues where Linux cannot connect to the network due to hardware being in hibernation.2
  7. Disable Connect Automatically Option : Turning off the "Connect Automatically" option for specific networks can prevent failed connection attempts and give you more control over network selection.2
  8. Check System Clock : Ensuring the system clock is correct is crucial for SSL certificate validation, which can fix connection problems caused by a mismatch.23
  9. Reinstall Network Manager : Corrupt files or settings in Network Manager can cause network connection issues. Reinstalling it can restore the system’s default network management.23
  10. Disable Power Management : Disabling power management can prevent the network card from being turned off to save power, ensuring a stable connection.23

If these steps do not resolve the issue, consider reinstalling your Linux distribution or seeking further assistance from community forums.234+4

AI-generated answer. Please verify critical facts.

5 disable the network connection from the system tray

6 click the gear icon of the network

2 disable the network connection

SSH Permission Denied. Please Try Again Error


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