NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
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...
Seems that the ISP would be at fault here since the system had been working. The ISP seem to do there own handling of modems regardless of user owned or not. Its up to them in the long run. I would agree it's NG responsibility to get with the ISP and get this figured out. If the ISP has declared it no longer supported on there network then they need to let users know about it and not just make the modems stop working. The CBR in it self is well capable of working for all speeds up to 1Gb on DOCSIS 3.1. Unless ISPs are turning OFF support of DOCSIS 3.1, these modems should work until such time. There would be a ton of other modems and users complaing about there DOCSIS 3.1 modesm not working if ISPs did that. DOCSIS 4.0 isn't ready from what I see until another year or two. And even then ISP wouldn't just shut off 3.1.
One item to think about when it comes to gateway modems, SInce there all a combo included system, you might try a separate system next time. Haveing a all in one system can be some what limiting and inflexible on future needs as time goes on. I prefer to have a separate modem and separate router system that way if something happens on the modem side, I can made changes there easier than having to change out a entire system. Having a separate router system that you control and make work with any router seems to have more stability and flexibility than combo units.
As a temp solution, you could connect a different modem up and use a different router, then configure the CBK750 system for a faux AP mode and continue using it's wifi system. Until the ISPs and NG get this figured out.
Thanks, FURRY. I was already thinking about the possibility of buying a modem and using the CBR as a router. IDK how to do that but I will look into it. Maybe Blanca will eventually offer some help. I'll send her a private message and ask. I'm stuck with the Xfinity equipment until I get back to the USA. In the future I will take your suggestion and get separate modem and router.
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.