said by RAY16 :
I think it might finally be time to retire my old SB5120. I've been having some connection hiccups since this upgrade rolled out (upstream in particular) and I've noticed Cox has moved it into a list of modems that are "compatible" but not recommended since the last time I looked at the supported devices list.
Oh well, time to see if I can find a cheap SB6120 on craigslist or some such.
Watch out buying pre-owned modem's they could be blacklisted by the isp, and you get screwed with a modem that you can't use. If I was you, I would try to come up with $80, and get a D3 modem from a local cox store. Plus the one's at the cox store's should be 8x4 D3 modem's, unlike the Motorola SB6120 you mentioned, that's a 4x4 D3 modem. Which mean's the 6120 is limited to 4 downstream channel's, and is a older D3 modem. The newer D3 modem's are 8x4, and can bond up to 8 downstream channel's. If you want a motorola modem, look at a Motorola SB6180, or SB6141. The SB6141 modem availability is more, compared to the SB6180, but both are 8x4 D3 modem's.