This message indicates that the CCAP (i.e., the equipment at Cox your modem connects to) requested a power level on one channel that's significantly higher than on the other channels. But it didn't just do that for no reason. Most likely, it did that due to a spike of noise on the upstream frequencies. These noise spikes are almost always caused by something outside of your property and outside of your control. It's impossible for you to identify the source on your own. Your only hope is to call and speak to a support technician who will hopefully schedule a tech visit, or when a Cox employee posts in this thread you can follow their instructions for e-mail support. The tech will need to be able to see the problem happening in order to troubleshoot it. It might take multiple visits to correct the problem. Don't use chat support for this. The chat support technicians are not sufficiently trained to understand this type of issue.
