Computer randomly disconnecting for periods of time

It recently started to happen to my computer, where I would be in the middle of gaming and the internet disconnects and stops working. My first instinct is to go down stairs and reboot my Internet, nothing happens so I tried rebooting my computer. After it booted up the was a yellow triangle with a exclamation mark on the network icon.( I've been getting this a lot lately) this must the like the 5 time it happened in 3 days. It stays that way for longs periods of time and magically starts working again, but disconnects again later at a random time.
One thing I noted is that this is only happening to my computer in the house. The wireless is working fine and so is my mom and dads computer.