I have my router setup with 2 frequencies:
When I'm near the router, I'm connected to the 5Ghz wifi network.
But when I go into my bedroom, I am switching to the 2.4Ghz network because the 5Ghz signal is too weak at that distance (barely getting any speed).
So I manually switch to the 2.4Ghz, but my MacBook automatically changes back to the 5Ghz network. I switch back to 2.4Ghz, it stays connected for 2-3min and then goes 5Ghz for no freaking reason.
I already placed the 2.4Ghz network at the top of the preference list in the advanced network settings, but it didn't help.
Running OS 10.11.5. Any ideas?