Found on the web that the Charter cable folks were waiting for version 3.5 of the firmware to be deployed in June. Checked mine and it's running SBG6580-188.8.131.52-GA-00-488-NOSH so I guess Comcast has deployed it.
Still getting serious fluctuations in wireless signal strength. I'm less than 20 feet away, through two wood walls and my signal strength is 60% but often drops to 36%, according to Lenovo's Access Connections app. If I move into the same room as the AP signal strength is only 89% and I'm within 8' of the blasted thing, This is rediculous. At my old house, I had a single FIOS wireless that I could get a great signal even in my back yard.
I've tried changing channels and that did jump my signal strength from 89% to 100% while in the same room but when I moved back out two rooms it dropped to 29%.
i an running SBG6580-184.108.40.206-GA-00-488-NOSH (3.5) SAME THING IT NOT THE SOFTWARE. IT THE LINES ON THE POLES. Line share with tv or to fast for there out dated cable lines. I had sb6121 did same thing storm got it. update to SBG6580 / this is all over the USA same thing. They say reboot. SB. rework your line system. Line noise timeing out. There not going to tell us it the wiring system on the poles.