Slow 4G connection only, but only sometimes -- SOLVED

I hooked up an external antenna and it helped not one bit. I still just get 2 bars on 5G as a secondary connection to go along with my 3 bars of 4G coverage, Walking around doesn't seem to improve the connection but it's hard to tell since the meter on the cylinder just shows the best 3bar connection and not specifically 5G. I don't have a 5G phone to test with.

Looking at the Cellmapper web site I don’t see the only 5G connection I can get; N41 / PCI 7.

Supposedly my area has "5G Ultra Capacity" coverage but the towers to support that don't show up on cellmapper.net; mostly just along the freeways. I guess it only has what users submit.

Maybe I should hook up the external antenna to the 4G line and try to get more than 3 bars.

Usually the 4G is much better than what I used to have but sometimes it's spotty with even poorer performance than my old 10 megabit DSL.I suspect that the router doesn't do that great of a job handling the drastically shifting speeds available so I get lots of bufferbloat and whatnot. Upload speeds are often < 1 megabit with tests often failing to even complete when there are slowdowns.

Edit: I still get 2 bars on my antenna for 5G even with the antenna disconnected so maybe I didn't get it connected right. The again, it was the same with the internal antenna so perhaps I just can't get a freaking 5G signal at my house despite being in a "5G ultra capacity" zone. :|