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Replaced my Xfinity modem to save the $14 month rental, fee. When directly plugged into the modem my laptop gets the full bandwidth but once I connect my router and plug into one of the lan ports the speed is noticeably slower. I think Xfinity throttles the speed when you replace their modem for your own, as this has happened with previous devices. This is no fault of the modem, other than that it works fine for my needs. I could have gone with a Docsis 3.1 device but with the internet plan I have I saw no real benefit. I will see how this holds up over time but I do not foresee any issues, it is working well so far
Verified purchase: Yes | Condition: Pre-owned
My only criticism of this modem is that it has only one ethernet port. Otherwise, it is working really well for me. Works perfectly with my Google Mesh network system, and allows me to fully utilize all the features of my Ring security system (my previous modem/router did not allow video from my Ring system).
Verified purchase: Yes | Condition: Pre-owned
The MB7621 is perfect for my situation. I get exactly the speeds I pay for, without overpaying for a “faster” more expensive new gigabit modem from the likes of Arris or Netgear which would have cost 4x more. Best of all, I am avoiding the $14 monthly equipment fee I was paying Xfinity.
Verified purchase: Yes | Condition: Pre-owned
Easy to connect. Came alive as soon as Comcast registered it at their end. The original speed has definitely improved but not to the speed Comcast is charging me for. Will update after taking this up with Comcast. This is one of the modems in their approved list.
Verified purchase: Yes | Condition: New
Product performs well ... but .... I don't get full usage from all channels ... this could be the ISP, which is mediacom and they are horrible at most things ... I'm getting 20 not 24 up and 4 not 8 down. I'm not blaming motorola as I can't confirm from mediacom that they are throttling me back. So, be aware that 24 x 8 docsis 3.0 may not get fully utilized as most everyone is pushing towards docsis 3.1
Verified purchase: Yes | Condition: Pre-owned
very easy setup. I thought I was going to have to call Comcast to activate. After installing the new router with it , It all came online in about 3 to 5 minutes.
Verified purchase: Yes | Condition: Pre-owned
I had to get a new modem because my old 4 channel unit couldn't handle the faster speeds available now. This one hooked up and ran fine after I registered it with my ISP.
Verified purchase: Yes | Condition: New
This is by far a great product. Set up was easy and easy to configure. Highly recommended.
Verified purchase: Yes | Condition: New
This modem has a broadcom chipset with no latency issues, works so nice, smooth, cool, and so simple to setup. Exceeds my expectations. I´m a CS Engineer with network background, I recommend this for your performance and good price..
Verified purchase: Yes | Condition: New
Very easy to set up. No issues. Now saving by not having to rent a modem for $14 a month.
Verified purchase: Yes | Condition: New