I am curious if it's possible to run 2.4 and 5 GHz on two of my routers and just 5 GHz on the third?  The reason is that almost every smart plug on the market only uses 2.4GHz. My wireless subwoofer also uses 2.4Ghz. This causes interference since the router is near the speaker bar. I can't really move either the router or the speaker bar. So I have 2.4 turned off to avoid interference with the sound. Any help appreciated.