Killer-N wireless works on networks other than my home network?

Okay so I have an Alienware M17x R4 and the Killer- N 1103 Wireless Adapter.

The situation is, at home I have a Netgear DGN3500 router and at work… Well I'm not actually sure what router we have.
Anyway… My wireless internet connection works flawlessly at work.
However at home on the netgear wireless network my laptop can't keep an internet connection. It stays connected to the network but refuses to keep a connection.

I have a diploma in network engineering and I'm out of ideas. I studied quite a few years ago now so technology has changed so much since then. I just need some ideas.

inSSIDer hasn't helped at all. The Killer-N wireless software is hopeless. I've tried uninstalling it.
I've even tried uninstalling my antivirus and firewall. Nothing has helped.

Right now I'm using my iPhones personal hotspot, and guess what… It's working fine. This is what leads me to believe my laptop doesn't like my wireless network.

Added (1). It's definitely a wireless issue. Works fine when I plug it in

Added (2). Also. Every other wireless device in the house works fine.

Try to determine exactly where the problem it
1) Wi-Fi
2) your lan
3) your modem connection

In the Internet dropping out when you connect via Ethernet?

If so its not a Wi-Fi problem.

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