xFi pod trouble

Is my xFi pod defective?

I have an xFi pod installed to increase my Wi-Fi range to reach my Ring cameras and garage door sensor. It also increases reception on our iPhones.

This xFI pod, located in our family room, has started to constantly give me trouble. Its test download speed, which is normally in the 300 Mbps range goes down to the 6-20 Mbps range. This causes the Ring equipment to go off-line, and our iPhones cannot connect to the internet. Occasionally the pod will also show a slow blinking white light.

I tried the following steps in trying to resolve this:

1. I unplugged the pod, waited, and plugged it back in.  This worked for one or two speed tests, then dropped drastically.
2. I then unplugged the pod, restarted the router, and plugged the pod back in.  Again this worked for one or two speed tests, then dropped drastically.
3. Last night I totally removed the pod from my network, restarted the router, and reinstalled the pod to my network. Again this worked for one or two speed tests, then dropped drastically.

Whenever I unplug the pod, my iPhone connection moves over to my gateway where it receives up to 200-275 Mbps.

Is this pod defective?