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Forum Discussion
kingtj
Feb 03, 2019Star
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...
kingtj
Feb 07, 2019Star
Yeah.... I tried to follow every message thread on here I could find about this CM1150V and speed issues. And honestly, at least half of the threads did sound like people were having problems with other things like line errors due to poor signal levels on some channels. That, plus how few people seem to even own this new modem or want to use it on a gigabit speed tier with Comcast, makes it difficult to figure out what's really going on.
But I waved the white flag for now. I surrender. This modem is getting returned this afternoon and I fought with Comcast for another 2 hours on the phone to get them to re-provision the XB6 router they provided me initially. (After they got it working for data, it was a big struggle to get the voice provisioning department to do their side of it. Ugh....) It would be really nice if they'd leave BOTH modem profiles in their system so I could switch back and forth between the two for easier troubleshooting, but they won't.
At this point, I'm just hoping a version of this XB6 winds up a product end users can purchase.
Windchaser
Feb 10, 2019Tutor
Hi, I am new to Netgear community. I have a similar issue with Comcast and CM1150V, however it also involves the Orbi RBR50 mesh wifi units.
Six months ago I upgraded my network with the Orbi RBR50 and it was attached to the Comcast modem. We have Comcast "Blast" service and we were getting 150-170 mbps download and 12-15 mbps upload. All was good in OZ.
Last week I upgraded to the CM1150V to get rid of the monthly modem fee. When my iMac is connected directly to the CM1150V I get 150-170 mbps down and 10-20 mbps up....HOWEVER, when I connect the CM1150V directly to the Orbi RBR50, the speeds drops to 50-70 mbps down and 11-12 mbps up. This speed is consistant when testing the other satellite units within the house too. The phone service is working OK.
I purchased the Netgrear units to avoid compatibity issues and simplify the installation. I went for the CM1150V to be "future proof" with the trend to DOCSIS3.1
Now I wondering if the newer DOCSIS 3.1within the CM1150V is not compatible with the DOCSIS 3.0 in the RBR50?
I greatly appreciate any insights on how to resolve this issue.
- WindchaserFeb 10, 2019Tutor
UPDATE
I completely rebooted the CM1150V, Orbi and the satelites and the network is now back to 180 mbps. I see where I went wrong, I just turned off/on the Orbi when I installed the CM1150V and did not go through the process of restaring everything from scratch.