- Step 1:Click the Checking firewall and antivirus configurations link on your browser when you receive the message.
- Step 2:Otherwise, go to the Start menu and type Firewall.
- Step 3:Open the Windows Firewall window and select the Advanced Settings option on the left panel.
- Step 4:Check for the port number in the Blocking internet access section.
- Step 5:Double-click on the program you want to open and select the Protocols and Ports tab.
- Step 6:You have to remove the port number from the blocked list.
- Step 7:Go back to the Generals section and select the Allow the connection option. Then, click on the Apply button.
- Step 8:If you still can’t connect to the network, other Firewall or third-party Antivirus software may block the internet connection.
- Step 9:Check the TCP port numbers 80, 443, 3478, 3479.3480, and UDP port numbers 3478,3479 are blocked. If blocked, unblock the port numbers to allow internet access.
- Step 10:Press the Start menu and open Control Panel.
- Step 11:Navigate to the System and Security section. Now, select the Security and Maintenance option.
- Step 12:You can view the third-party security software under the Network Firewall tab.
- Step 13:Click the View installed Firewall apps link and select the third-party Firewall.
- Step 14:You can view the status of the Firewall.
- Step 15:Now, launch the third-party Antivirus software and turn off real-time scanning.
- Step 16:Choose the duration to turn off security. Then, click on the Turn Off button.
- Step 17:You can also right-click on the Antivirus software displayed on the Windows taskbar. Then, select the Disable or Stop option from the list.
- Step 18:Also, turn off the Firewall feature of the program.
- Step 19:You can now access the internet from your browser.
- Step 20:By using these steps we can proceed that how to fix the firewall or antivirus blocking internet windows 10.