Wifi Troubleshooting

[strife]

Correct, 5GHZ is shorter range but faster.  2.4 is slower but better coverage.  I would never mess with manual channel selection, let the router do it automatically.  Have you checked for Firmware updates?

Dont run multiple routers in the same area, especially if neighbors already have stuff that you are picking up.

I'm having the same issue with multiple routers. I have upgraded the firmware as well. I don't think it's my hardware unless it's just bad positioning... I'll figure that out once I get my longer network cable which should be here tomorrow. 

I'm only running 2 routers right now to test the signal on them.  I'm trying to determine if my personal router is the problem.  From what I can tell, the comcast router seems to have a little stronger signal.  I have my wife pretty much being the only person using one of them, and I have most of my other devices on the other.

If relocating the router doesn't fix the problem, I may go the nuclear option and throw a bunch of $ at a more expensive router.  I've even thought about having someone come in (not comcast) and see if they can fix the issue, but I honestly don't even know who would do that.