How to block IP Address
How to block IP Address
It's clear you're confused about how internet access functions. This community is meant to support users, not cause harm.
It's about security concerns—her application seems to disrupt my internet, while others in the house are still able to use it.
It's not about security concerns since I believe your sister has permission to access your network. If it were a neighbor or someone else, I might have different thoughts.
ClassIn is an ESL teaching app. Recently, its sudden shutdown caused my PC's internet to stop working. This happened before I removed the app from my system.
It actually triggers multiple disruptions on my side. The app was once installed on my PC, but now we have separate devices, and sometimes it behaves strangely—like an ARP spoof attack? There were many times when Xarp noticed her IP sending excessive requests to my computer, which affected my internet connection somehow.