(Gateway unavailable) Internet shuts off randomly without warning after setting up a new ASUS router.?

It seems just to be an issue for me on this one pc and not any other devices connected. This is also the pc I used to set up the router. Like I said the internet just randomly shuts off for me now on this pc only, without rhyme or reason, it could happen again within 5 mins or 12 hours. I can trouble shoot network and it will bring me back online but it doesn't solve the issue.

The router is a AC3100 RT-AC88U. Also the pc having issues is using ethernet. When I lose internet and try to access the router I get this message "Settings have been updated. Web page will now refresh.

Changes have been made to the IP address or port number. You will now be disconnected from RT-AC88U.

To access the settings of RT-AC88U, reconnect to the wireless network and use the updated IP address and port number."

It's also listed as "Network 2" so not sure if its having issues identifying or something. I've tried resetting the router, I've tried using these commands

netsh winsock reset

netsh int ip reset

ipconfig/release

ipconfig/renew

ipconfig/ flushdns

But nothing seems to work.It's the same result every time may try another router at this rate. I have no clue why this pc only won't work with the router properly.