Everything I wrote earlier was erased. rip.
Ok so let me try a briefer version. Simply put I have problems where my wifi will be deeply inconsistent and drop periodically and I am fairly certain my wireless card is to blame. It isn't the problem of a router, and I know this for two reasons: 1, this has happened with multiple routers, and 2, when I have problems it effects every possible connection in range, showing them all as 1-2 bars with poor internet; actually attempting to connect in this state will lead to intermittent connection or the dreaded "connected, no internet". This happens randomly throughout the day, for variable amounts of time but never very long. I also feel the problem is worse now then before (I might be wrong), but it was always a problem. I think that I had successfully fixed it a long while back by using some Command prompt magic I was recommended somewhere on the internet to reset my wireless card, but A) I had to almost completely reset my computer since then for unrelated reasons, B) I don't remember what I did, and C) I don't even know if it actually fixed the problem long-term. I've tried some simple things like updating my wireless drivers. I have a Dell Inspiron 7559 with Windows 10 if that helps.
I'm just seeing whether there is more due diligence or possible fixes any of you fine internet fellows might recommend I try. I don't want to go to a shop unless I'm fairly certain its a hardware problem.