How can I get my Switch better connected to the Internet?

Usually, when I try to use my Switch for online connectivity the system is connected but I keep getting error messages and won’t actually connect to the online servers I try to access.

I live in the countryside with my family, so maybe that’s why my Internet is so wonky?

But I’m still able to access the online classic games for the NES, SNES, and Game Boy at least: I just can’t play the regular Switch games.

Any advice for a better connection?