Some dickhead was talking shit over a game then my entire wifi network shutdown? Thankfully called my cousin who’s pretty techy and he logged into my wifi login and said he “changed my dns” not sure what that meant but it’s working now. Severely un educated in the topic and I’m aware it probabaly won’t go past them fucking with my network but could any explain how they did that/ how to be preventative for it. If my cousin didn’t help woulda most likely been done but not sure. Appreciate any feedback