LAN Network Disconnects when Downloading from Steam

When ever i try to download a game on steam, any game, the network adapter loses connection with the router.

First I thought it was the network adapter thats faulty. However I was able to update to windows 10 from 8.1.

Then I thought it was the laptop with Win10 causing issues. However I am able to brows the internet, download programs etc. I am also able to download Win 10 ISO at max speeds (37-38 Mbps) I am also able to download GTA 5 from Rockstar without issues.

I have tried to install Win 8.1 drivers from the laptop website, still same problem. I also tried to update driver from Windows update, and still same issue.

Could this be a steam only issue?

Laptop: Asus ROG G771J OS: Windows 10 Home 64bit LAN: Realtek PCIe GBE Family Controller