Multiple houses with CS2004 issue

My downstairs TV gave the error CS2004 when trying to tune into a channel, so I tried on a second box in the house and it also has the issue. As I was going through the troubleshooting my neighbour from across the street called on the mobile to say they were getting the same - however the support agent told them that everyone was fine and nobody else was having issues.

How do we tell them they are wrong??