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Forum Discussion
CM1150V and Comcast - can't get gigabit speeds?
I just upgaded my Comcast Xfinity "Blast" Internet speeds to Gigabit, which required I upgrde my DOCSIS 3.0 Motorola cable modem. I ordered Comcast voice service too, with this upgrade, so apparentl...
I'm having the same issue with the CM1150V, which has no line errors or power issues, and every channel is locked on. A Comcast tech was here yesterday to test the line, and when plugging the coax directly into his equipment, he was receiving download speeds of 1.1Gpbs (he showed me). But when plugged into the modem, I'm getting no more than ~260Mbps.
Oddly, when I run an Internet speedtest within my router (Nighthawk X4S, there's an option to run a speedtest directly from the console), it shows speeds of 650Mbps. But that's not the case when I run a speedtest through a browser.
> [...] my own Motorola modem (docsis 3.0 with four network ports [...]
Not a very detailed description of anything. "four network ports"
suggests that this "modem" is actually a modem+router.
> [...] I was disappointed when switching to CM1150V. Could not connect
> 4 different devices to the 4 ports. Was missing the routing option [...]
Replacing a modem+router with a simple modem might be expected to
cause the loss of router functionality.
> [...] I did not like the Comcast dependency regarding the firmware.
> [...]
If you can get firmware for any DOCSIS device without going through
your ISP, then many people around here would like to learn how.