Xfinity hotspot suddenly out of range

So I recently moved in with my grandparents to help take care of them during this pandemic. They don’t have WiFi, but I learned you can buy on demand WiFi passes for Xfinity hotspots. I saw there was a hotspot across the street so I bought a pass and connected on my Xbox. Everything was perfectly fine for about a week until I experienced an abrupt interruption in service, and I haven’t been able to connect to it ever since. I called the customer support and they weren’t much help as they told me it was most likely because my device was out of range from the hotspot, even though it was in range before. How could my device be in range for a week straight and then all of a sudden not be in range? I haven’t moved my device at all and the hotspot is still in service as of the last time I checked. Wondering if anyone else has experienced this.