2nd Gen Pod has a strong connection, but devices connected to the pod cannot access the internet

From June 2022-February 2023 I had no issues with my 2nd Gen Pod. Recently however, all devices from various manufacturers that were connected to the pod were unable to access the internet. The error message in the Xfinity app reads, "Device is limited by the Pod. You need to improve this Pod's connection to support all of your device's activities." When I check the status of the pod via the Xfinity app it says there is a strong connection. First, I restarted the gateway and that didn't work. Next, I unplugged the pod and reconnected it and that also failed to correct the issue. Then I unplugged the pod again and left it unplugged. All the devices that couldn't access the internet that were previously connected to the pod now were connected via Wi-Fi to the gateway and had internet access.

Surely this had to be a defective pod since everything worked when I removed that from the equation. Xfinity sent me a refurbished pod which I thought would quickly rectify the problem. Unfortunately, the identical problem still exists with a newly refurbished pod. At this stage, I am at a loss. Something is blocking internet access to all devices when they are connected to the pod, yet these same devices work great via Wi-Fi when connected to the gateway. There are some areas of the house that do not receive an adequate Wi-Fi signal from just the gateway, which is why I purchased a pod.

The Xfinity gateway I have is a Technicolor XB3, model DPC3941T. There are not a lot of variables here, just the gateway, pod, and the settings between those two devices which I do not believe require any user attention once the pod is connected. Thoughts/suggestions are appreciated.