wifiWi-Fi

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Solution

sudo apt-get install bcmwl-kernel-source 

Command to check network driver installed on your system

WiFi not working in HP laptop RTL8723DE Realtek wireless driver

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This method is exclusively for RTL8723DE series of wireless adapters. So make sure that you have these adapters by using this command:

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If you see a wireless network adapter starting with RTL, then only you should go ahead

Reboot 📶 and your wireless should be working. 😀

OR TRY THIS

recommend for HP users facing WiFi problem

📶 Reboot your PC.

Fix no WiFi in Ubuntu with Broadcom wireless adapters

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This method is exclusively for Broadcom 43 series of wireless adapters. So make sure that you have these adapters by using this command:

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If you see a wireless network adapter starting with BCM43, then only you should go ahead .

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Once the install is finished doing its work, you’ll need to reboot. After you log back in, you’ll be able to see and access your wifi connections.

Ubuntu WiFi is disabled

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Simply putting it on suspend and bringing it back up seems to make the wifi work normally.This is not a permanent solution.The only problem is to do this every time start Ubuntu.

just want to reactivate your WiFi

rfkill command used to enable/disable network drivers or activate or deactivate Network Adapters

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