Wifi stopped working suddenly on my desktop. Now I have to connect with cable to the router but when I open Network Connections it still says the wifi is connected and working. The Ethernet connection has the name of the Wifi SSID.
If I open the details of the wifi connection it says there is no0 IPV4 or IPV6 connectivity although these are checked.
What has happened?
Hi I recall that while my PC was on over lunch I returned to find those protocols had suddenly and without apparent reason vanished.
Why? Hmm, maybe there's a clue in your event log. Sorry, my crystal ball is down for scheduled maintenance
Easy option (hopefully), avoiding use of a possible series of commands:
Download and install Tweaking.com's repair tool (free), lots of cautious stages beforehand. Observe accordingly.
Select ONLY network connection repair.
Run the repair.
If that doesn't work, here's a set of instructions for repairs:
- Run the built-in Troubleshooter
Right click the network icon on the Taskbar
Pick Troubleshoot problems
Select Identify and repair network problems
Follow instructions in the troubleshooter
- Reset networking
Launch Command Prompt (Admin)
Copy the lines in the code box below
Right click in the Command Prompt window to paste
Code:
netsh winsock resetnetsh int ip resetnetsh int ipv4 resetnetsh int ipv6 resetipconfig /renewipconfig /flushdns
Restart your machine
- Disable IPv6
Open Network Connections
Right click on the affected adapter(s) (Wifi, Ethernet, or each one of them)
Select Properties
Scroll down to Internet Protocol version 6 (TCP/IPv6)
Remove the check mark
Press OK
Restart your machine
- Reinstall TCP/Pv4
Launch Command Prompt (Admin)
enter the following command
netsh int ipv4 install
exit
Restart your machine
- Restart Your Network Adapters
Open Network Connections
Right click the affected adapter(s) (Wifi, Ethernet, or each one of them)
Pick Disable
Restart your machine
Open Network Connections
Right click the affected adapter(s) (Wifi, Ethernet, or each one of them)
Pick Enable
Check in Device Manager and see if Windows updated your network adapter driver. I started losing my wireless connection in the Insider build of Win 10. It turned out to be a new driver Windows was installing for my Ralink RT3290 card. I had to go back to the older driver to get my connection to work again.
What version of Windows 10 do you have? If it's a recent version, try using the "Network Reset" in Settings->Network & Internet
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