CM3000 Repeated Cox disconnects with SYNC Timing Synchronization failure

Hey, Just reporting the same issues with my CM3000 and Cox.  The modem wasn't able to hold a solid connection, even though the lights on both my router and modem suggested otherwise.

When the Cox tech was out he replaced old connectors in the wall where the modem connects to coaxial, and in the closet where the outside line comes into the apartment.

In my case, I have a direct line from the tap to the wall, no splitters in between, which makes my signal come in a bit high, but is still within spec for Cox.  Anyway, the tech gave me, a 6db attenuator for the modem, and when connected, it flips the poor signal, the upstream turns yellow and download turns green.  Without the attenuator, my status is the same as the OP, downstream green, and upstream yellow.  My firmware, and hardware version(s) are also identical to op's.  I drew the conclusion that the Netgear, can't deal with the signal in this particular environment, as I put an Arris S33 into use, with the attenuator, and it holds a perfect connection, and the only issues I've had are known Cox outages.

Historical.y I've had issues with Netgear products except my Gigabit 8 port ProSafe switch, but wanted to try the CM3000 as a troubleshooting measure when I was having issues with the Arris, as I had no other modem to test against.

As it turned out for me, the Arris is the reliable modem, and the CM3000 isn't.  However, when the CM3000 does work, and did stay connected, it worked well.

Also, issues took so long to show up, that I missed the return window from Best Buy, so I'm stuck with the CM3000, so I've decided to just keep it as a secondary modem to use for troubleshooting at this point, if I have issues with the Arris, or if I ever need a high split compatible modem.