Internet going in and out

I have a work computer that keeps randomly disconnecting and reconnecting to the internet on it’s own. It started doing this a few weeks ago. Up until then this never happened. I have tried to troubleshoot it on my own, with no luck. I am hoping someone would be able to help me figure out why this might be happening? We have 10 other computers that do not have this problem. Which is stumping me even more.

Disclaimer we don’t have a dedicated IT person, I am that person. But I don’t have a ton of IT skills. Which is why I’m reaching out.