BT Smart Hub kicks me from network when specific IP connects to my game server

[Agil]

Hello, first time here!

I've been hosting Minecraft servers on my pc for my friends for the past 3 years, with no problems from my router. However, since 2 days ago, every time a user joins from a specific IP (2 siblings play on my server that cause this problem but other users do not) it completely disconnects my pc from the network and hides the connection so I cannot reconnect until reboot.

I am running a Windows 10 desktop with an ethernet connection, and the Minecraft server is a 1.10 forge server. 

I have never experienced this type of error before, nor are there any errors in my server logs that would indicate a problem on that end. 

The only reason I have come up with as for why this could be happening is maybe the router thinks their connection is dangerous and disconnects my pc from the network to prevent compromise? I don't know how I would check that sort of thing.

[licquorice]

Sounds more like the device connecting from that address is infected with malware.

[Agil]

We checked with various anti malware programs and none found any such problems on either end

[Agil · Accepted solution]

After some testing and educated guessing, I have found that the issue was the latest version of my ethernet driver. After rolling back, the issue has been resolved