Connectivity issue

Dear Cox Support Team,

I have been having issues with losing my internet connection over the past several weeks. Yesterday, I could not get the modem to connect at any point.

I have a Motorola SB6141. When I lose my connection the downstream light will come on and stay solid, and the upstream light will continue blinking indefinitely. I have tried unplugging the modem, waiting for several minutes to hours, and then powering back up. This will intermittently fix the problem, but yesterday the light was blinking when I got up in the morning. I tried the usual 'power off, power on' trick, but it didn't work. I came home from work, the light was still blinking. I repeated the process, but it was still blinking. Got up this morning, still blinking. Tried the process again, and it still isn't working.

I still have my old modem. Occasionally when the Motorola isn't connecting, I will try plugging in the old modem. Interestingly, sometimes the old modem will connect right away, and then when I plug it into the Motorola modem it will also connect right away. 

Also, the previous week I was at home a lot during the day, and I noticed that the modem seemed to consistently disconnect at around 12pm (give or take 10 minutes).

Thank you for your time!