Replacement for Arris cornerstone NIU
My Cox internet connection is via a legacy Arris NIU. The coax from the street connects to the Network port and the coax feeding my cable modem connects to the Home port. There are a couple of voice ...
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Should just need a grounding block, assuming the NIU was correctly grounded. However the NIU is Cox property so just contact them to come out and remove it and do everything required. No replacement since it isn't used anymore and serves no function. If anything, it just causes problems. I am surprised it's still there. When was the last time you had a technician out?
The box would have been removed long ago except it is inside the garage so they did not see it or think to ask. I would gladly pull it and put it a grounding block myself but since the NIU has voice ports/splitters, it will likely change my signal levels when pulled. I will get a tech out to look at that.
Tcox, voiceports will slightly alter your transmit/receive levels when connected. Being inside the home, harvesting teams would have been unable to retrieve it. They may have pulled power from the main drop though. It should be removed to reduce the chance of it creating concerns in the future. We would be happy to help with setting up a visit. Reach out to us via email at cox.help@cox.com for assistance.
I called in and was put on some waiting list for a service visit. It has been a couple of weeks and no follow up. The NIU is near my interior breaker panel and I have gone to the trouble of exposing enough of the wiring so a tech can verify how it is connected. I don't have any lingering issues, but if I have to wait much longer I will just pull the box myself.
What do you mean by voice port/splitter? It has female RJ11 connections of course, because that is where you phone line used to connect to, but now it comes from your phone modem(eMTA) so the ones on the NIU aren't needed. There is a splitter/tap inside the NIU and I even think a low powered amp too. However the NIU was powered with electricity that was sent over the coaxial when the NIUs were used, but now that Cox doesn't, they no longer have the equipment on the line to send electricity through the coaxial to power it. So basically it's a paperweight but one with a splitter inside. So yes, removing it will change your signal but it should just make it stronger/clearer. The only problem that would lead to is if the signal going to your house was already too strong or you were using a amp inside to boost it. I suggest having a technician remove it and then look at your signal levels. For more info, what model modem/gateway do you have?
