I have been experiencing a loss of wireless connection to MacBooks in my home and can't figure out why.  I can connect other devices, phones, Windows PC, laptops, Nest devices, and have no issues.  Two different Mac laptops seem to randomly work for a few hours and then disconnect.  

I have the 2.4 Ghz and 5 Ghz enabled - 

I have Guest Network enabled for only 2.4 Ghz

No filters, no parent controls, no black lists

IPv4 Dynamic IP, as well as IPv6 and everything disabled on the "Advanced settings".

I have removed the wireless names in each book, cleared settings, updated OS on them, called APPLE and they said check the wireless network to see if there is some authentication issues, or setup preventing them to connect after a period of time.  I have looked everywhere in the APP and can't see anything.

After I reset everything on the MacBook, I can connect for maybe a few hours, it might last 24 hrs, and then never connect again.  I am within 6 ft of the WAP and don't know where else to turn except get rid of the MAC -hahah

Any help is greatly appreciated.

Greg