Hello. I apologize that you encountered this experience. We value your long time business with us and appreciate that your service has not had any major issues. With this current issue, I would recommend swapping the older modem for a new one to see if the issue persists. If it does, we should have a technician investigate why the sudden change. If you have questions or would like further assistance, please contact our team on Facebook, Twitter/X, Instagram or by email cox.help@cox.com with a link to this thread so we can assist. Thank you.