Visitor
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1 Message
Connecting Xfinity modem (telephone jack) to wired home network
I recently had an electrician run a cat5 line from my office to the CenturyLink Network Interface Box. When CenturyLink service was discontinued, I removed the CenturyLink connections from the user side of the NIB and connected the new cat5 wires. They are in exactly the same place as the old CenturyLink wires were. I checked for voltage on the cat5 RJ11 outlet and found it to be 51v, so there is definitely connectivity. However, none of the telephones on the house wiring work. If I connect the Xfinity modem (RJ11 jack) to the cat5 RJ11, it kills the modem and it takes it a few minutes to reset. If I plug the modem into another house wired network RJ11, nothing at all happens. I am puzzled by this. Any suggestions? I could use some education on how the NIB works. Also, I am somewhat puzzled by the fact that there is still voltage at the NIB running through my new cat5 line. I would have thought all that would have been killed when CenturyLink service was discontinued.
CCValerie
Official Employee
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974 Messages
3 years ago
Hi there, thank you for reaching out through our Xfinity Forums! I understand you are having some trouble connecting our phone service. Please rest assured you have reached the right team for assistance. I can check the account and look into what is going on. Please send us a direct message with your full name and service address.
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