network secuirty

I have very weird question (for education purpose) if someone(who has access on my internet) blocked all my device from my WIFI what i should to do to reconnect. Without reset of router or turn off.

Hi guys--lost my old account somehow so I'm even noobier than I was before...anyway... I'd say the problem has gotten out of control. Worse? I'm not sure--just that sometimes it can freeze 10-15 times in a hour. Maybe more. It froze about 10 times in the duration of me typing this out. Using my...