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Believe it or not I was running a 10 yr old sb6120...hasn’t been on the xfinity support list for awhile now (lol) we were overdue for an update. This cm600 is working well, and easy to set up (xfinity screen came up in the browser and I just followed the instructions). It runs at 24x8 so much better than the 4x4 my old modem ran at. I believe I a refurb, but everything was in the box!
Verified purchase: Yes | Condition: Pre-owned
Excellent Modem with high throughput. Works well with Spectrum Services. I did have to make a call to get Spectrum to put in the MAC. After that it was gold.
Verified purchase: Yes | Condition: Pre-owned
As described. Functional, great quality. I just needed to update the firmware of the router and go through the usual pain of activating the modem with the ISP company... The R6250 with dual band (IEEE 802.11ac) is enough for my small home and the CM600 24x8 channels is enough for even 300mbps Internet speeds.
Verified purchase: Yes | Condition: Pre-owned
Very true to CNet's review. Installer had zero issues, and it supplies blazingly fast speeds as advertised.
Verified purchase: Yes | Condition: Pre-owned
Bought this used and it activated perfectly fine on Xfinity without having to call them. Just went to the Xfinity activate website and went from there. I have the 300mbps plan and this tops out at 350+ on my wifi. Good stuff.
Verified purchase: Yes | Condition: Pre-owned
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