I always do well on them, hooked to Seattle, 4685 down and 352 up right now.
My problem is getting into the stream. One of the techs that came out when I first got Comcast, a few years ago, explained there is an acceptable bandwidth or range that my signal must fall somewhere in.
Previous techs had put the meter on and said it's ok because it was in that range, but this guy told me if it's not near the center, when it hits the merging/switching points along the cable, it'll hit the abutments on the side and stop.
He might have been bullshitting me, but when he was done fooling with it, I'd click on a website and shazzam, I'm there.
After that big outage, I can't shazzam any more. I get the, can't display the site message, frequently and when I hit refresh I usually shazzam.
I've got to call them and get a tech out here but I think I better see my doctor for some blood pressure medication, first. Even though I don't take any normally.
Yes, dealing with Comcast will do that.