Xfi Pod Not Connecting

Greetings,

Looking for some expert help with my Xfi Gateway and Pod not syncing with each other. I received a pod about 3 weeks ago to help assist with some week signal areas in my house. Unfortunately the device will not connect. I have tried multiple locations around the house, even swapped out this pod with another one from my local xfinity store but neither of them will connect to my gateway. I have even moved my gateway to a different location. I have spend countless hours on the phone and messaging customer support but still no solution! This has become very frustrating now since I pay a lot of money for my service to have dead spots. Take note, I am not your typical customer, I have over 10 years of IT experience. I believe it may be the actual gateway but who knows??  Since all the equipment is Xfinitys, I expect it to work! This was the whole reason why I stopped using my own modem and router!

Please please help me!

Thanks,

Phil