Q. After upgrading to windows 10 from windows 7, I can’t connect to a wifi network. The taskbar icons say “Unidentified network no internet access” upon troubleshooting, it says that Wifi doesn’t have a valid IP configuration.
I am using A realtek 8188cu wireless usb adapter.
Answer.
The issue might arise due to firewall from the security software blocking the connection but as you have already tried uninstalling the anti-virus software, I would suggest you to try the following methods and check if the issue persists.
Method 1:
Run the network troubleshooter and check if it helps.
a) Press “Windows Logo” + “W” keys from the keyboard.
b) Type “Troubleshooting” in the search bar and press “Enter”.
c) In the “Troubleshooting” window, click on “View All” on the left pane.
d) Click on “Network adapters”.
e) Click on “Advanced” and then click on “Run as Administrator”.
f) Click “Next” and follow the on-screen instructions to complete the troubleshooting process.
If the issue still exists, try the next method.
Method 2:
Reset DNS and TCP/IP settings and check if the issue persists.
- Press “Windows Logo” + “X” keys on the keyboard.
- Click Command Prompt (Admin).
- Please enter the following commands, and press enters after each one.
NETSH INT IP RESET
IPCONFIG /flushdns
Restart the computer to check the issue.