I am confident once this appointment is scheduled again and we are able to confirm with you, a new modem replacement will not be needed. Also, if you are having an issue that requires a technician, it is most likely to do with the dish outside which is not something we can fully alter remotely.
Like I said previously, the issue was most likely with the dish outside if the original representative recommended this as the correct method. In your case, this was not the specific issue you were experiencing, however, it is more time and cost-effective to do it this way as opposed to issuing out a new modem and hoping that solves the problem. When the technician arrives at the location, they are able to determine the specific issue once the modem is powered back on. In your case, this was the only thing that needed to be done. With that being said, I am glad to hear your service is back up and running. If you ever need assistance in the future, please reach out again.