Darn. It is more difficult with a modem router combo(AKA Panoramic gateway). Try going to 192.168.0.1 > User;admin password;password(unless changed) > Connection > Cox Network > Scroll down and look at the downstream and upstream levels. Copy/paste is difficult because of the formatting so if possible, upload a screenshot. Basically your downstream should be between +5 and -5 and SNR above 35. Upstream should be below 50. The bad part is you can't see your logs of when the connection drops.
Also you mentioned the coaxial going to the street was replaced, but could you explain how the coaxial gets from the street to the room the gateway is in? Splitters/filters/amps? If so, how many and what kind?
Single coaxial barrel connector connected to wire straight to modem. no splitters or amps.
Download speed 470Mbps, upload speed 37Mbps
What about outside? Do you have a plastic box on the side of your house where the coaxial attaches to your ground? If so, have you looked inside there for splitters? Sometimes a technician will use one for the attachment to the ground rod or however it grounds. Once I see the signal levels I will be able to say what the problem is with more certainty.
Outside there is an Antronix ground block which the service coaxial connects to. My coaxial connects to the other side of the ground block. No other splitters or connectors. Will try to get signal levels if can get internet service back
Just so you know, you don't need internet service to pull up that IP. It is a local IP address of the modem itself. It would be good to know your signal levels when the modem is offline and online so we can compare.
