Wifi keeps dropping

Hi everyone,

I recently purchased a 13" early 2015 Macbook Pro (3.1/16/500), I upgraded it to High Sierra but I have noticing a few issues. The most persistent and very annoying is the wifi. When I'm on a video conversation on messenger.com, the wifi keeps dropping and immediately connect again, which makes it very hard to discuss as I kiss half of what the person says on the other side.

While doing some research I can see that many people have been having similar issues but the solutions offered are always specific to the user so I am just wondering if anyone has any ideas about what I should do.

Thanks is advance for your help guys