wifi connection comes and goes

Hello,

I am running the newest mac mini with newest software. I have always had bad connection coming and going but have been using different computer because of it. I now need to use my mini more and need to have this dealt with. My connection is fine, other computers and phones work flawlessly on the network. My mini shows connected but will constantly drop the connection/regain shortly, As consistent as every few minutes. Says there is no internet(others next to it just fine), or just stall. Any ideas why this is happening? I have removed connection and put back on.

Ideas? Thank you!