8 Messages
MoCA filter prevented activation of modem
I was on Chat with an Xfinity agent who attempted to activate a new modem being added to my account. This modem was a high-speed replacement device for my older modem which worked well but had a speed limitation. Activation of the new modem was not successful. After multiple attempts we gave up.
So I could continue to have internet service, we simply attempted to reactivate my old modem which was working fine just an hour earlier. Activation was not successful on my old modem, either!
As an act of desperation, I removed an inline MoCA filter that was in series with the coax just before the modem. At that point, the activation of my old modem worked and I was back online.
The Xfinity agent believes the MoCA filter prevented the modem activation, but could not explain why. Does anyone have a technical explanation?
EG
Expert
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111.6K Messages
22 days ago
It may have been malfunctioning and causing too much insertion loss in the line, thus the signals were too low / weak for the modems to be able to function properly. This can be tested by observing the modem's signal strength with it in the line. and then not, and comparing the readings.
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EG
Expert
•
111.6K Messages
22 days ago
Some models of modems are more forgiving of less than stellar line conditions than are others. And yes. Any signal / connection quality impairment can hamper a provisioning operation. If the system can't see / hear the modem, it can't activate it.
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