Troubleshooting guide
How to fix the problem
Linux Wi-Fi disappearing after sleep may be a driver or firmware update issue, but first check if the card itself is disappearing or just the network connection. Record the data immediately after waking up.
Possible solutions
Choose the method that matches your situation. Start with the simplest suitable option and check the result. If the problem is fixed, you do not need to continue with the other methods.
Card and blocking status check
Information commands help you compare before and after sleep.
Steps to follow
- Write down the uname -r result and card model via lspci or lsusb depending on the device before going to bed.
- After waking up, check if the card is still listed and run rfkill list if the tool is installed.
- If there is only a software disable of Wi-Fi, try to enable the connection in the network menu of the system. The hardware lock software command does not always remove.
- View journalctl -b logs at wake time and note firmware or controller errors.
Comparison of supported kernel and firmware
Do not change multiple unknown drivers at once.
Steps to follow
- Do a normal reboot and see if the card reappears.
- Install supported kernel and firmware packages through the distribution's official update tool.
- If the problem started after the update, compare the previous still supported kernel in the boot menu without deleting it.
- Repeat one sleep-wake attempt. If the result depends on the kernel, notify the distro with the collected data instead of installing obscure scripts.
If the problem persists
If the problem occurs with another supported kernel, please provide the card chip, distribution, kernel, and relevant part of the log. Logs may contain network names and addresses, so hide them before publishing.
Request a repair