Haha, depressed?
Give you some advice: 1, close wps, and some QSS can be closed safely! This is a must!
2. Set a complex wireless password with more than 10 letters and numbers, such as z9675vc73m.
More complicated ones can be added with the symbol # ￥ %×
3. Change the IP of the router LAN port to an uncommon IP, such as192.168.178.1. Of course, you'll change it on the way later.
4. Change the password of the router login account.
If he can rub your net again, you have to buy some gifts and worship him as a teacher!