How to return internet gateway

Unfortunately, from my own experience and many other users' complaints the retail stores have no idea how to support home internet service. While we can cut TMO some slack with the understanding that home internet bears very little semblance to cell phone service and equipment, TMO could have done a whole lot better with some training. Ironically (or coincidentally?) when I went to my local store the first thing they said to me while processing my order was "sorry but our office internet is so slow". When I asked what service they used, they said it was Spectrum cable. This is considering that my TMO gateway gets 250-350 mbps down and 15-20 mbps up and the store has better cellphone signal than I do at my house. Go figure.

On the other hand, it’s the opposite experience for the cable providers trying to add cellphone service.