This is the 3rd used Arris TM722G Telephony Cable Modems that I have tried (2 from eBay & 1 from Amazon Mkt). The telephone function didn't work with the 1st one. Comcast informed me that the 2nd one belonged to Comcast & wouldn't connect me. The battery in the 3rd one was bad so I substituted the battery from the 1st one & it seems to work perfectly. Comcast offers rates that the TM722G will not handle but I don't that high a rate. I have a cable modem that works well & it has a battery backup which the one I rented from Comcast didn't.
Verified purchase: Yes | Condition: Pre-owned
I called comcast ahead of time to verify this model is compatible and they confirmed it was - I was worried it was going to be damage or old but this came in excellent condition, the ethernet cable they provided is a little short so I used the one I already had that comcast provided. The set up to a bit of work with comcast : I provided the TMAC number that came on the side of the unit, it was easy to find. I submitted these numbers and got it registered. I had to reboot my computer to get the phone on and then after I opened up my browser I got the comcast walk through setup process ( note that I already had the phone line automatically active by then ) . Final step was filling in my account info and after that instantly I had internet -- it worth the effort I'm now saving a little bit each month.Read full review
Verified purchase: Yes | Condition: Pre-owned
This is the exact same model that I was renting from Comcast for $10 a month. It should pay for itself in a few months. The only issue I had was that it would not activate and when I contacted Comcast I was told that it was still registered on the network. I had to physically take it to a Comcast office to have it disconnected and then it activated. It's all good now.
Verified purchase: Yes | Condition: Pre-owned
The unit was obviously used (stickers not cleaned off, etc) but otherwise was exactly as advertised. Took an hour on the phone with Comcast reading all the numbers to them (s/n, EMAC, CMAC, etc) due to their antiquated computer system. Units works well now and I don't have to pay rent on the Comcast unit.
Verified purchase: Yes | Condition: Pre-owned
Used this to replace the identical model that Comcast charges me $10 a month to rent. Simply unplugged the old unit and plugged in the new unit in the same manner. Then I opened Chrome on my computer and it opened up to the Comcast new hardware setup page. After following the instructions, the new modem worked. I was shocked how easy it was. So thankful I didn't have to call Comcast for help!
Verified purchase: Yes | Condition: Pre-owned
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