ContributionsMost RecentMost LikesSolutionsRe: New cable Model Motorola My old modem is the Arris Touchstone SB6182 I can say without a doubt after being told by people at cox that #1 they did not need the CM MAC address , which is incorrect , #2 You cannot run on the old modem without contacting Cox 1st, well that might be correct but even with Cox on the phonewith me and them telling me something is wrong on my end we hooked up the old modem and it magically still works on the old modem. I ask the cox person what is the problem? it is clearly on your end. They would not escalate the problem to the next level. I still am waiting for an answer from Motorola which they are going to tell me its Cox because of the CM MAC address that was never taken in the 1st 2 times I talked with Cox. This would not be a problem but I cannot have internet down during the week as the wife and I are working from home. I get these from the model log history SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing; Lost MDD Timeout SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing Honoring MDD; IP provisioning mode DHCP WARNING - Non-critical field invalid in response TLV-11 - unrecognized OID DS profile assignment change. DS Chan ID: 32; REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided I agree, I do not think its the modem and I would not have a problem with someone coming out to hook this thing up but I am not going to pay cox for their incompetence. But then again I may not have any choice in the matter .. I will try and get ahold of them on Friday Thanks for the help I will try and follow up on this once we get it solved. Downtown Re: New cable Model Motorola I did and nothing worked, that is why I decided to switch to the old modem thinking that I would have to call cox. But before I called the internet came up on the old modem making me think cox did not do everything on their end . I thought they would have needed the CM MAC address from the bottom of the router but they did not ask for it, and when I mentioned it to them they said they dont see why they would need it. New cable Model Motorola Just a general question If I get a new modem MB8600 by Motorola and after the initial setup and Cox verified everything is good to go. And I still have no internet, Will I be able to plug in the old modem and use it without having to call Cox and tell them that my modem has changed back ? I changed routers this weekend and after Cox told me I am good to go and that my problems lie with my new Router, I changed back to my old router and everything worked fine without me telling cox that I made the change back. I am still waiting for the manufacturer to come back with answers as to why my new modem is not working, but thought it was funny that the old modem fired back up. I also changed to the gigablast speed and was was convinced that the old router would not work with that service. Can you help with this questions DT