If you’re referencing the specific tech scenario where a "bitch neighbor" has gained access to your Wi-Fi password, the primary concern is usually —specifically what they can see and how to kick them off. What can they actually see?
If your computer has "File and Printer Sharing" turned on, they might be able to see and access folders you’ve marked as shared. How to get them off your network Your Bitch Neighbour
This is the most effective "reset." Log into your router’s admin panel and update the WPA2/WPA3 password. This will immediately disconnect every device, including the neighbor. If you’re referencing the specific tech scenario where