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Comcast cable Internet service has highly variable connection speed.

We are signed up for 6Mbps service in San Francisco. We had a great experience with installation and initial performance. Lately, however, our connection has been sluggish on and off. When we called customer service, we were told that it looked fine, and since we had no warning lights on the cable modem, there was nothing Comcast could do. Frustrating response.

Side note: Periodically, my husband FTPs large video files to clients (he is a video producer) - but in theory, that is not a peer-to-peer service and should not trigger the same DOS attacks that Comcast is perping elsewhere. Or would it?
 
sad I’m perplexed
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