CenturyLink Zyxel C3000Z with TP-Link AC1750 WiFi Extender however signal drops

Foleyk

As of late moved into another house in Portland, Ore. furthermore, am associated with the by and large great CenturyLink gigabit fiber. They're running it into the house through a Calix 716GE-I R2 ONT and associated then to Zyxel C3000Z. The house is 3300 sq. feet and I have two TP-Link AC1750 WiFi Extenders in the cellar - one practically directly under the Zyxel and one over the house that I then design into my PS4. The PS4 is getting the sign from the principal TP-Link extender as it is excessively far away from the Zyxel. I have 2.4Ghz organizations and 5Ghz organizations and everything considered, there's six distinctive wifi organizations. 

I'm running different gadgets all while telecommuting and taking care of far off tutoring and all in all, the framework works very great with speeds somewhere in the range of 100-300Mbps on the 5g (some of the time even 500Mbps) and 50-100Mbps on the 2.4Ghz. 

Nonetheless. I basically need to reset the switches each day because of sign drops. It'll show the organization however decline to associate and it doesn't appear to be attached to any one specific piece of the house. 

Musings? Would it be advisable for me to attempt to change to the Greenwave C4000 which should, in principle, better handle the heap yet appears to likewise have a few issues? Is there an approach to change the extenders with the goal that I don't have so various organizations running? Would it be advisable for me to sort out an approach to wire down to the storm cellar with a switch and new switch center? Much obliged ahead of time!