I have Verizon Fios Verizon FIOS Quantum Gateway G1100 AC1750 router. I have multiple devices connected without issues Mac laptop, Alexa Amazon dot, Surface Pro 4, 2 Kindles. Thinkpad for work. I changed the wireless channels and the surface wifi connection drops out once in a while yet the other devices are fine. I also notice the kindles one drops out once in a while and now the other starts to lose connection. I made sure everything is update, firmwate, drivers. I also have a Netgear Nighthawk EX 7700 as an extender which is updated and shows great connections. What can I do to find out where the drop lies?