12/2 sounds like the new basic D3 speeds. I found this PR on Knology's site for Huntsville dated 02/01/2010:
»
www.knology.com/media/pr ··· fm?id=81quote:
Knology Internet will deliver top speeds with DOCSIS 3.0:
Residential Knology Internet
12 megabit download
2 megabit upload
Residential Knology Edge
25 megabit download
5 megabit upload
Maybe Knology hasn't pushed a config file out for the Ciscos? I'm running a Moto 6120 (no edge) and get 13/3 usually and I believe Dusty has a 6120 as well but he has Edge with Edge speeds, but we both are in Panama City area.
Maybe power cycle the modem again and then call to see if tech has a config file out for the Ciscos. Either way, it seems like you should see 25/5 so maybe call tech and see what they say.