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Friday, August 15th, 2025

Multi Question | 2gig + XB7 & 2gig XB7 Bypass (looking for the limitations) | Why must we use your gateway for standard ethernet equipment

I am seeking clarification regarding the authentication process for my ONU to my Gateway. Through PCAP, I can see you are implementing EAPOL (802.1x) in some form preventing simple direct connection to 3rd party gateways.

Up until now, I have been able to use your gateway in bypass mode and use it without any issues, as my 1 gig service functioned adequately. However, I recently upgraded to the 2gig service, which unfortunately does not include a gateway with dual 2.5gig Ethernet. While this is understandable for anyone using Xfinity Wifi directly, which I am not. I require more than one 2.5-gig network port for my setup.

My ultimate goal is to connect your 2gig service directly to my existing 2.5-gig wired Ethernet 3rd Party gateway without using any Xfinity gateway. This is because I already have appliances that provide the necessary services.

If possible, could you please explain the technical reasons behind these limitations? Understanding this will help me make an informed decision regarding how best to proceed with my internet setup.

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3 Messages

1 month ago

I also would like to know the answer to this as I'm in a similar predicament. My xfinity gateway is not capable of providing my devices the 2gbps speed the service is supposed to provide. My own equipment is capable but I can't connect it directly to the ONT.

Official Employee

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2.3K Messages

1 month ago

 

talvifox Thank you for reaching out via  our Xfinity Community Forums. and for your very detailed and well-informed question. I understand your frustration with the technical limitations you've encountered, especially after upgrading to our 2 Gbps service to get more speed for your advanced home network.

 

You've correctly identified that our network uses 802.1x authentication, which is a fundamental part of how we provision and secure our services. Our gateways are specifically designed to perform this authentication, ensuring that only certified equipment can connect and receive the correct speed tiers. This is why a third-party gateway cannot directly connect to the network in the same way. The bridge mode you're using is the official, supported method for customers who want to use their own third-party router. We understand that this is not ideal for your setup, as it limits you to a single 2.5 Gbps port, but it is a necessary part of our network's design.

 

At this time, we do not have a way to allow a direct connection with a customer-owned gateway for this service tier. We know this can be a significant limitation, and we're continually evaluating our equipment and policies to better meet the needs of our high-speed customers.

 

We truly appreciate your feedback. It helps us understand what advanced users like you need and helps guide our future product development.

3 Messages

Is there any plan to roll out better Xfinity hardware like the XB10 to these plans? Even if you aren't using your own Router with XB7/8 in bridge mode there is no way for the XB7 or XB8 to provide an Xfinity user the service they are paying for. The wifi does not go 2gbps FD and because there's no LAN ports on either device that go fast enough there is literally no way for the XB7/XB8 to provide service for that network tier. Not to mention both of our networks from Xfinity are being fed 10gbps from the Xfinity ONT so if Xfinity does plan to offer higher speeds they wont be able to due to the hardware limitation. 

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@user_szc2qr​ I'm fighting this same situation right now. I even had a XB10 in hand and the tech/backend phone techs could not/would not connect it to my network. Every person I speak to on the phone will only respond with the information provided on their screens saying the XB7 "supports 2gig speeds" and won't listen to why it will not work for fiber setups that want a 2.5g port available to use those said speeds. They all offer to upgrade to the XB8 but the port layout is the exact same. No one will send me the XER10 and the techs swear the XB10 will not work for fiber networks. It's insane to pay for speeds you fundamentally cannot use due to the hardware provided and REQUIRED despite the gateway doing zero modem work and is purely a router at this point. I have my own WiFi 7/full 2.5g ethernet router but it cannot receive the speeds I'm paying for through the XB7 ports

They will not provide any device that their system claims isn't "compatible" with your service area, which means they will only provide XB7 and XB8 for EPON services (even though the XER10 "uses the latest WiFi 7 (802.11be) standard and tri-band technology to deliver ultra-fast, multi-gigabit speeds for customers in Fiber-to-the-unit (EPON) residences." according to their own website) ON TOP OF THAT, in researching the XER10, bridge mode is not available so you will be stuck with double NAT or only AP mode for a 3rd party router. 

Official Employee

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3.2K Messages

Hello, @user_5ye2ag! Thanks for reaching out about your 2 Gig speed and capabilities of the equipment in your home. The technicians have final say on the equipment that is installed in your location but as of 8/14/25, the XB10 and XER10 are the recommended setup for EPON 2 Gig locations. The equipment has to be professionally installed. Have you had a technician come out in the last few weeks or was it before that? 

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