2.4GHz WiFi drops out at random because the servers produce electromagnetic interference. Solution: Move the WiFi AP away from the servers.

I hope this pops up as a possible solution to someone in the future with a similar issue.

Took me a week to isolate this problem since it was so intermittent, and had no way to reproduce the problem. Just had to try to fix it and wait.

I have several 1U servers (wired only), and on top, the modem, router, and AP in my home. We use the WiFi for gaming and streaming services since the business internet is much faster than the residential and the residential has a data cap.

I was talking with my wife about, pulling my hair out, chugging a few beers. We're trying to think of anything at this point. I've decreased packet sizes, gone through every channel, changed polarity, you name it. Then she mentions how we had the AP further away from the servers at the old house.

We moved the AP to about 3ft away and now everything works perfectly.

I got so buried in 2.4GHz radio settings that I didn't stop and think about the fact that the servers are simply electronics and electronics produce electromagnetic interference sometimes.

Unimportant note: 5GHz was always unaffected.