AT&T Fiber Equipment

AT&T swapped my old Pace gateway with Arris BGW210-700 a couple of weeks ago. Since then I've been experiencing sporadic wi-fi drops. I installed a network scanner today and sure enough I see the drops happening sporadically (see attachment). The drops last only a few seconds but long enough to

I just signed up to receive AT&T fiber. The salesman told me my current EEro mesh extenders that I own will work with AT&T's system. Does anyone have any experience with this? I have been researching online and can't find info on how to make them work together.