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Asked: 2024-09-26T13:26:54+05:30 In:

I recently updated my Ubuntu system, and now my WiFi connection is not functioning properly. Has anyone else experienced this issue after an update, and what steps can I take to resolve it?

So, I’m in a bit of a pickle here. I recently updated my Ubuntu system, and now my WiFi connection is acting super weird. Like, it connects but then drops out randomly, or sometimes it won’t connect at all. I’ve tried to restart my router and my laptop, but nothing seems to work. Honestly, it’s been really frustrating, especially when I’m trying to get some work done or just chill and stream something.

I did a little digging online, and it seems like I’m not the only one facing this issue. I came across a few threads where other users mentioned having similar WiFi problems right after they updated their systems. So now I’m wondering if this is a common thing with the latest update or if it’s just me.

I did check to see if my wireless drivers were updated, but everything seemed fine on that front. I even tried using the built-in network troubleshooter, but it only gave me vague suggestions that didn’t really help. I’m not a complete noob when it comes to troubleshooting, but I feel like I’m running out of ideas here.

Has anyone else run into this issue after updating? If you’ve managed to get your WiFi working again, what steps did you take? Maybe there are some hidden tweaks or terminal commands I need to try that could help? I would appreciate any tips or insights you all might have. Is there a specific configuration I should check or perhaps roll back to an older version of a driver or the kernel?

I really don’t want to spend hours trying to fix this if there’s an easy solution. Any advice would be appreciated!

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    2 Answers


    1. It sounds like you’re dealing with quite a frustrating situation after your Ubuntu update. WiFi connectivity issues are unfortunately not uncommon following system updates, as sometimes the new kernel or drivers can introduce incompatibilities with existing hardware. It’s a good idea to first check if the issue lies within the network manager settings. You can try resetting the network manager by running the command sudo service network-manager restart in the terminal. Additionally, consider checking the status of your network interfaces with ifconfig or ip a, which can give you an idea of whether your wireless card is being recognized correctly or if it’s in a down state.

      If resetting the network manager doesn’t resolve the issue, you might want to explore rolling back to an earlier kernel to see if that stabilizes your connection. You can select a previous kernel version from the GRUB menu during startup. Moreover, adjusting your WiFi driver settings can sometimes help; for instance, you can try disabling IPv6 by editing the /etc/sysctl.conf file and adding the lines net.ipv6.conf.all.disable_ipv6 = 1 and net.ipv6.conf.default.disable_ipv6 = 1. After making these changes, be sure to run sudo sysctl -p to apply them. Lastly, consider checking online forums or the Ubuntu community for updates or specific patches related to your WiFi adapter model, as some users may have found solutions that worked for them after the same update.







    2. WiFi Issues After Ubuntu Update


      WiFi Troubleshooting Tips

      Sounds like you’re dealing with a real headache! Here are some things you can try to get that WiFi back in line:

      • Check for Driver Issues: Even if it looks fine, re-install the drivers. Sometimes, they don’t update correctly. You can do this with:

        • sudo apt-get install --reinstall

      • Disable Power Management: Sometimes, your system might be turning off the WiFi to save battery. You can check and disable it with:

        • sudo iwconfig wlan0 power off

      • Update Kernel: If your kernel version has issues, trying to update or even roll back might help. Check your current kernel version with:

        • uname -r

        If it’s an older kernel, you might switch back using the GRUB menu during boot-up.

      • Change Network Manager Settings: Sometimes, tweaking the configuration helps. Open the settings for your WiFi connection and try changing the mode to 802.11g or 802.11n instead of auto.
      • Check for Conflicts: If you have other network tools like wicd or network-manager, they might conflict. Try disabling one of them.
      • Logs Check: Look at the log files to see if there are any errors. Use:

        • dmesg | grep wlan

        This might give you some error messages that could lead to the root of the issue.

      Hopefully something in there works for you! Don’t lose hope, lots of folks bump into these issues after updates. Good luck! 🚀


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