Thanks, Seth! I got a quick response from someone at Comcast.

Cheers,

On Wed, Dec 26, 2018 at 3:36 PM Seth Mattinen <sethm@rollernet.us> wrote:
On 12/26/18 15:24, Masood Ahmad Shah wrote:
>
> You business support team keep insisting on sending an onsite tech. I
> explained that I don't believe that will resolve this issue (There is no
> evidence of an issue with the lines or signal levels) and it's a packet
> loss inside Comcast network, most likely aggregation/backhaul.


The easiest way forward is to let them send the tech out. That's the script.