Pretty sure I know why I'm not getting my full bandwidth per my upgrade package (250Mbits). It's got to be the old coax. When we bought the house, it just had a TV antenna. In fact, the antenna was a large one and installed in the attic. But I recall when the service tech first wired us up in 2008 or so, there was a large loop of coax that he left in place. Also, the run meanders from one end of the house to the other and then all the way into the basement.
It can be dropped straight down into the basement right from where it comes into the attic. Approximately 20 ft vs 100. It's worth doing and I would prefer to pay somebody if it wasn't too much. Even if it's not the ultimate cause, I think this is something that should be eliminated first.
So any idea of average cost for an xfinity tech to do this. The attic is hard, it's full of blown in insulation.
MOTOROLA 16x4 Cable Modem, Model MB7420,
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You could try hosting it at one of those free third-party pic hosting sites and post the link to it here.
Hey there, tashicom, thank you for reaching out here. If you would just like a new coax cable, we can send a tech out there for $70. However, I'd be happy to troubleshoot further to see if this can be resolved with remote troubleshooting. Feel free to send me a PM with your first and last name so I can check out your signals, etc.
To send me a Private Message, please click my name “ComcastAlly” and click “send a message.”