Here's mine:
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I called Comcast today and they sent down a refresh signal, and per the tech's suggestion, I unplugged the comcast modem and then my Airport Extreme for a couple of minutes. Looking at Pine Tree14 above this post and that seems like he's got a T-10 connection LOL.
I don't think this is terribly fast but I do have the Comcast Triple Play and they said it includes some sort of booster. Looking at some of the numbers posted here I feel like my setup is "sluggish"? LOL Had to laugh this morning because the lady tech said she had no idea what Comcast used as a baseline guarantee. I'm in a neighborhood that has had underground wiring for 30 years now and supposedly it is fiberoptic. Other parts of my town are on telephone poles, don't know how to find out any more on speed.
In the house we have a 13 MBPro on wireless as well as a new iPad, plus two iPhones that are using the wifi. In addition, my wife's PC is a bit older so I think its a G... but I have it disabled and she's hard-wired just like my iMac and my Shuttle XPC are.