Is Comcast Sabotaging my Connection?

[Die Geheimwaffe]

We had internet problems similar to yours for about four months. My roommates and I know our stuff when it comes to computers and networking and quickly ruled out our own equipment, which left the ISP. We called them and they sent techs out who insisted that there was nothing wrong with their equipment and it must be us even though they couldn't find a problem anything. Four months and 5 techs down the road we eventually got one that did his job and behold he did find a problem with their equipment.

Rule out your equipment and then be foreceful with insisting the problem is on their end because even it is they'll try to tell you it's not.