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Forum Discussion
CBR750 now not working with Xfinity
I have CBR750 with one satellite, Xfinity is the ISP. Worked great for more than a year until Xfinity "upgraded" their system in my area (Bellevue, WA) early November, then several times I had to un...
The CBR can only be using in AP mode if you go with a separate modem and another router. The CBR can't work as a separate router.
Hopefully NG and the ISP can get this figured out.
Hi cshep5528 , Heyrip , night64 , (cc: FURRYe38 , Blanca_O ),
If this has been after an Xfinity upgrade in your neighborhood, has Xfinity/Comcast field service technician come out to your home to verify signal strengths and troubleshoot?
Believe it or not, I have been a Xfinity/Comcast broadband customer for the last 23 years (Earlier it was "branded' as @Home, ATT, Comcast and now Xfinity). I've owned my Netgear Orbi CBK752 bundle (CBR750 (Cable Modem/Wireless Router) + RBS750 (Mesh Satellite) since November 2020. There have been a couple of Netgear firmware updates that had "issues", but I am past that now, thanks to FURRYe38 , and other Netgear Community members.
Xfinity recently "upgraded" their infrastructure in my neighborhood and had maintenance, after which I had severe degradation of performance - decrease in speed and stability issues. Remote troubleshooting with reseting at my end re-provisioning at Xfinity end did not seem to resolve the issues!
Xfinity sent a field service technician to my home to take a look at my signals and issues. Being a 23 years Xfinity customer, there was a "legacy" device outside my house where the fiber optic was dropped. Savvy field service tech spotted and removed it and I am etting 1.4+Gbps down and 40+Mbps up (subscribed to 1.2Gbps up and 35Mbps up) .
Also, if you have not reached out yet, please do so to Xfinity forum (Xfinity Community Forum > Internet > Your Home Network https://forums.xfinity.com/topics/your-home-network/602d56f9e6b3965d18e3a596
IMHO & YMMV
Wishing all a very Happy New Year,
Al
I'm also in the Denver area, and having similar problems with my Orbi CBR750. I bought the Orbi in May 2021 when I upgraded to 1.2Gbps service. It worked perfectly for about 16 months, showing download speeds up to 1.4Gbps. In October, I was notified by ComCast that they were doing an "upgrade" in my service area, with intermittent outages over the course of a week. Following this "upgrade" the Orbi would work fine for about 48 hours, then the download speed would slow to almost nothing. If I rebooted it, it would continue working, but I was getting tired of the frequent outages and having to reboot every couple of days.
Last weekend it happened on Saturday morning, so I decided to call Xfinity for support. The agent asked all kinds of inane questions about how many devices I had connected, etc. without really understanding the issue. Then she told me that my equipment was "outdated" and needed to up replaced, as the CBR750 is no longer on their approved device list.
I am very frustrated by this, as the published specs saying DOCSIS 3.1 and 32x8 channel bonding would appear that it should be compatible. I don't know whether to be more upset with NetGear or ComCast? It seems to me that ComCast has changed something that makes these devices incompatible, but they don't seem to be able to articulate it.
The only thing that I have found from searching online is that the CBR750 may use an Intel Puma chipset, which are known to have issues?
In any event, after only 18 months after buying a state-of-the-art DOCSIS3.1 cable modem with WiFi6 mesh networking, I'm basically left holding $500 worth of junk, and I've had to spend another $500 to replace it. This time NOT going with NetGear, even though it might really be ComCast's fault.
I'd really like for them to explain why any DOCSIS3.1 modem isn't compatible?
Atejwani, thanks for the reply. To answer your question, yes Xfinity has been out to ny house and supposedly looked at the connection to my house. Also, I would think if there was something amiss there the Xfinity equipment that is working might have a problem.