Problem solved!!!
Comcast(our internet provider) sent a tech out today as I have been having trouble with really slow internet speed, sometimes as slow as 2Mbps down but more often than not around 20Mbps. The tech replaced some splitters and suggested we needed a better modem/router that he could install and it would help with speed, I mention I was no longer wanting to rent and would purchase a modem and router myself. His suggestion on getting wifi to the garage was underground Ethernet cable.
So off to BestBuy my wife and I go! I purchase Arris SB6190 modem and the guy helping me suggested I try the Amplifi HD router system. He was skeptical it would work over that distance but said we could return it if it didn't work.
I installed the modem and router and checked my speed, 180Mbps down!!!! I installed the one mesh point in the kitchen nearest the garage and the other mesh on the wall nearest the kitchen, speed test showed 80Mbps down! I streamed some 4K content on the television while my wife was on facebook and for over two hours never a single hiccup, no buffering! I am super happy.