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rb247

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3 Posts

347

October 28th, 2024 09:18

Dell XPS 13 9340 Ubuntu Wifi drops/crashes (2024)

Recently purchased Dell XPS 13 9340 with Ubuntu 22.04. 

I have found the wifi crashes periodically, every hour or so, such that in GUI 'no wireless adapter is found'. I have to restart the machine to regain connection. My suspicion is that it is somehow linked to power management, I have tried everything I've seen online to disable wireless power management for both iwlwifi and iwlmvm drivers but for whatever reason it does seem to reactivate which correlates strongly with the wifi crashing though not always. 

iw dev wlp114s0f0 get power_savePower save: off#notice a crashiw dev wlp114s0f0 get power_savePower save: on

My specs:

OS: Ubuntu 22.04.5 LTS x86_64Host: XPS 13 9340Kernel: 6.5.0-1020-oem

Has anyone experienced a simliar issue? Many thanks.

rb247

1 Rookie

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3 Posts

November 29th, 2024 20:11

Final update, the issue returned, in the end it was a hardware issue, whereby if you tapped the laptop firmly on lap or on any surface, all networks would drop, bluetooth would recover, but wifi did not. New motherboard did not resolve the issue so am assuming it was something to do with antennae connection. Laptop was replaced, issue solved. 

beeram

1 Rookie

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23 Posts

October 29th, 2024 02:05

Understanding and Resolving Dell XPS Wi-Fi Issues

It's frustrating when your Wi-Fi connection keeps dropping, especially when it seems linked to power management. Here are some potential solutions to try, building upon your suspicion and the common solutions found online:

1. Deep Dive into Power Management Settings:

  • Device Manager:
    • Open Device Manager.
    • Expand "Network adapters."
    • Right-click on your Wi-Fi adapter (likely "Intel(R) Wi-Fi 6 AX201 Wireless Adapter").
    • Go to "Power Management."
    • Uncheck both "Allow the computer to turn off this device to save power" options.
  • Power Options:
    • Open Power Options.
    • Click on "Change plan settings" next to your active power plan.
    • Click on "Change advanced power settings."
    • Expand "Wireless Adapter Settings."
    • Set "Power Saving Mode" to "Maximum Performance."
    • Expand "PCI Express."
    • Set "Link State Power Management" to "Off."

2. Update Drivers and BIOS:

  • Intel Driver & Support Assistant: Use this tool to automatically find and install the latest drivers for your Wi-Fi adapter.
  • Dell Support Website: Check for the latest BIOS update for your specific XPS model. Updating the BIOS can sometimes resolve hardware-related issues.

3. Check for Interference:

  • Other Devices: Try moving your laptop to a different location to see if the issue persists. Sometimes, interference from other devices can cause Wi-Fi problems.
  • Router Interference: Ensure your router's firmware is up-to-date and that there are no other devices interfering with the Wi-Fi signal.

4. Network Adapter Troubleshooter:

  • Open the Settings app.
  • Go to System > Troubleshoot.
  • Run the "Network Adapter" troubleshooter and follow the on-screen instructions.

5. Clean Driver Reinstall:

  • Uninstall the current Wi-Fi driver from Device Manager.
  • Restart your computer.
  • Download the latest driver from Intel's website and install it manually.

6. Consider Hardware Issues:

If the above solutions don't work, there might be a hardware issue with your Wi-Fi adapter. Contact Dell support for further assistance or consider replacing the adapter.

Additional Tips:

  • Third-Party Wi-Fi Utilities: Some users have reported success with third-party Wi-Fi utilities like Intel's Wireless Software or Killer Wireless Control Center.
  • Windows Power Plan: Ensure you're using a high-performance power plan to prevent aggressive power saving.
  • Background Apps: Close unnecessary background apps that might be interfering with the Wi-Fi connection.

By following these steps and carefully considering your specific XPS model and Wi-Fi adapter, you should be able to resolve the Wi-Fi connectivity issue.

Regards,

Ravi Teja Beeram 

rb247

1 Rookie

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3 Posts

October 30th, 2024 08:55

I resolved the issue by using Dell Recovery -> Restore System. My suspicion is that upon delivery I immediately updated the PC software in Software Center which upgraded the kernel from 6.5 oem to 6.8 which messed up the drivers. I did try manually downgrading back to 6.5 oem from 6.8 and removing it but for whatever reason this was not sufficient.

I would be interested to know how other are able to take regular updates, security etc, and maintain the stability of their XPS 13 9340 Ubuntu 22.04. Thanks.

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