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Troubleshooting Guide

Fix Wi-Fi Not Working in Linux Mint

Complete troubleshooting guide to resolve Wi-Fi connectivity issues inLinux Mint. Includes solutions for missing drivers, network problems, and more.

📅 Updated: January 2025⏱ 9 min read🔧 Troubleshooting

🔍 Quick Diagnosis

Before diving into complex solutions, try these quick fixes:

  • Check if Wi-Fi is enabled in system settings
  • Try turning Wi-Fi off and on again
  • Restart your computer and router
  • Check if other devices can connect to Wi-Fi
  • Try connecting to a different network
  • Test with an Ethernet cable if possible

Wi-Fi connectivity issues are among the most common problems users face when switching toLinux Mint. This comprehensive guide will help you diagnose and fix various Wi-Fi problems step by step.

Most Wi-Fi issues in Linux Mint are caused by missing drivers, power management settings, or network configuration problems. Follow the steps below to resolve your connectivity issues.

Step-by-Step Troubleshooting

1

Check Hardware Switch

Easy

Ensure Wi-Fi is enabled on your hardware.

Solutions:

  • Look for a physical Wi-Fi switch on your laptop
  • Check if Fn + Wi-Fi key combination enables Wi-Fi
  • Verify Wi-Fi LED indicator is on
  • Check BIOS/UEFI settings for Wi-Fi disable
2

Verify Network Manager

Easy

Check if Network Manager service is running.

Solutions:

  • Restart Network Manager service
  • Check if networking is enabled
  • Verify network interfaces are up

Commands:

sudo systemctl status NetworkManager
sudo systemctl restart NetworkManager
nmcli networking on
3

Check Wi-Fi Adapter Detection

Medium

Verify your Wi-Fi adapter is recognized by the system.

Solutions:

  • List all network interfaces
  • Check if Wi-Fi adapter is listed
  • Identify the wireless interface name

Commands:

lspci | grep -i wireless
lsusb | grep -i wireless
ip link show
iwconfig
4

Install Missing Drivers

Medium

Install proprietary drivers if needed.

Solutions:

  • Use Driver Manager to install proprietary drivers
  • Check for available drivers in repositories
  • Install firmware packages

Commands:

sudo apt update
sudo apt install firmware-misc-nonfree
sudo apt install linux-firmware
5

Reset Network Configuration

Advanced

Reset network settings to default.

Solutions:

  • Remove saved network configurations
  • Reset NetworkManager configuration
  • Restart networking services

Commands:

sudo rm -rf /etc/NetworkManager/system-connections/*
sudo systemctl restart NetworkManager
sudo service networking restart

Common Wi-Fi Issues

Wi-Fi Adapter Not Detected

High

Cause: Missing or incompatible drivers

Solutions:

  • Install proprietary drivers via Driver Manager
  • Install firmware packages from repositories
  • Use USB Wi-Fi adapter with better Linux support

Can See Networks But Can't Connect

Medium

Cause: Authentication or configuration issues

Solutions:

  • Forget and reconnect to the network
  • Check password and security settings
  • Try connecting with manual configuration

Weak Wi-Fi Signal

Low

Cause: Power management or antenna issues

Solutions:

  • Disable Wi-Fi power management
  • Update wireless drivers
  • Check antenna connections

Intermittent Disconnections

Medium

Cause: Power saving or driver issues

Solutions:

  • Disable power saving for Wi-Fi
  • Update network drivers
  • Adjust router settings

Wi-Fi Chipset Support

ManufacturerModelsDriverPackageSupport
Inteliwlwifi, Intel AC 7260...iwlwififirmware-iwlwifiExcellent
BroadcomBCM4313, BCM43142...broadcom-sta-dkmsbroadcom-sta-dkmsGood
RealtekRTL8188EU, RTL8192EU...rtl8xxxufirmware-realtekGood
AtherosAR9485, AR9462...ath10kfirmware-atherosExcellent

Advanced Solutions

🔋 Disable Wi-Fi Power Management

Power management can cause Wi-Fi disconnections. Disable it to improve stability:

# Check current power management status
iwconfig
# Disable power management temporarily
sudo iwconfig wlan0 power off
# Disable permanently
echo 'options iwlwifi power_save=0' | sudo tee /etc/modprobe.d/iwlwifi.conf

📦 Manual Driver Installation

For unsupported chipsets, you may need to compile drivers manually:

# Install build tools
sudo apt install build-essential dkms git
# Example: RTL8821CE driver
git clone https://github.com/tomaspinho/rtl8821ce
cd rtl8821ce
sudo ./dkms-install.sh

🔄 Complete Network Reset

If nothing else works, perform a complete network configuration reset:

# Backup current settings
sudo cp -r /etc/NetworkManager /etc/NetworkManager.backup
# Remove all connections
sudo rm -rf /etc/NetworkManager/system-connections/*
# Reset NetworkManager
sudo systemctl stop NetworkManager
sudo systemctl start NetworkManager

Prevention Tips

🛡️ Prevent Future Wi-Fi Issues

Before Installation:

  • • Research Wi-Fi chipset compatibility
  • • Download drivers beforehand if needed
  • • Have Ethernet cable ready for setup
  • • Check Linux hardware compatibility lists

After Installation:

  • • Keep system updated regularly
  • • Install proprietary drivers when needed
  • • Create backup of working configuration
  • • Monitor for kernel updates that may affect drivers

🆘 Still Having Issues?

If you've tried all the solutions above and Wi-Fi still isn't working, consider these options:

Community Help

Ask on Linux Mint forums or Reddit r/linuxmint

USB Wi-Fi Adapter

Consider a Linux-compatible USB Wi-Fi adapter

Professional Support

Contact local Linux support services

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