I've had this happen to me as well. Comcast technician came out to hook up one of the other tenants in the building, and went through the Comcast hookup box (t

I've had this happen to me as well. Comcast technician came out to hook up one of the other tenants in the building, and went through the Comcast hookup box (there's only one for the building) and disconnected all the splitters that went out to the other units in the building - it's an old building with some almost certainly not-up-to-code coax running all over the place along the outside to hit all the rooms where drops have been put in... Meanwhile, the video conference I was on at the time suddenly dropped. Started to make me think about whether the other tenants were also getting the higher speeds I was paying extra for...