Your modem is assigned to another
11/2020 - 11/2021 One Year Contract
11/2020 - 06/2021 Motorola SB6120
06/2021 - 11/2021 Motorola MB7621
11/2021 - Current NEW One Year Contract
They say both my personally owned modems are assigned to another and suggest I (1) ask Motorola to change the serial numbers, (2) buy a new or, (3) rent one.
Grrrrrrrrrr... what is there to do now?