Upstream OFDM is coming

My old arris DG2460 is 24x8...but not D3.

I assume you mean D3.1. Also, watch out for the CAX80. I hear bad things on Reddit about it. Then again, the people who enjoy it probably don't post.

Yup, meant 3.1. There's been a LOT of discussion on the CAX80, and you're right, the most vocal of people are those having issues. I used to beta test for netgear back in the day, AND I beta tested the 6300 for Cox, working with their Docsis Engineering department also testing out firmware updates for them. Yup, I was one of the 3000 people who got bricked by an update, which is why I have the 2460. 

Hey, that is still a good upgrade. That means you are close too. Maybe within 6 months? Fingers crossed.

Also, I think the first upgrade is 2 OFDM channels down and 1 up, for a total of 3, not 4.

Oklahoma here, nothing like that here

Think it is OK City. Where are you?