Residual network changes left behind after removing a virus.
Right-click "Command Prompt" and select . 2. Execute the Reset Command reset tcp ip
Before diving into the technical steps, identify if your connection issues match these common symptoms: Residual network changes left behind after removing a virus
Resetting the TCP/IP stack is a "long-standing" or "deep" troubleshooting feature in Windows used to repair corrupted network configurations by overwriting the relevant registry keys with fresh defaults . reset tcp ip
Find your interface name with networksetup -listallhardwareports .
Click the icon to add it back, then select the interface type. Click Apply . Method 2: Clearing Plist Files (Advanced)