Do you have cable internet with Cox? If so, any problems with that? You could look at your modem's signal levels to see if those are fluctuating and when. You could also use pingplotter to measure the disruption over time. Last, you could use the box's diagnostic to see the signal strength. What model box do you have?
Other then that your would need a signal meter to measure the signal going into the box, which is expensive and probably not practical. I can give further instructions based on what you want to try.
Those sound like good, technical answers to OP's request for suggestions. But if pixelation is being caused by a mainline signal issue, the ultimate solution will require a line repair. That will only happen after escalation by a Cox tech following a visit that identified a Cox signal issue.
the ultimate solution will require a line repair
I concur but my post was about OP's request to "catch it and document it". I assumed they needed the data to get it properly escalated for the technician to fix it. If nothing else, knowing when it happens would be helpful so they know when to send the tech. out.
Those sound like good, technical answers to OP's request for suggestions
Yeah, I knew you were answering OP's request. I was just making sure he knew before he invested in any expensive equipment that his user generated documentation might not be enough to get a line tech to make the necessary repairs. I've always heard that a Cox tech has to escalate a signal issue before a line tech will get involved. It might be useful in determining when to schedule the tech visit, but if he would need to buy equipment he might only use once, he could just spend $30 for three months of CCC that he might be able to get waived. Time-of-day when pixelation occurs most often is when I would try to schedule the tech visit, but that's probably going to be at night, so it might not be possible I think we're agreeing with each other.
