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10/16/2026 10:36 AM

ARRIS G36 compatibility with Gigabit Extra (1200 Mbps), Brother printer, and connection reliability

Subject: ARRIS G36 compatibility with Gigabit Extra (1200 Mbps), Brother printer, and connection reliability

I currently have Xfinity Gigabit Extra internet service (1200 Mbps) and use my own NETGEAR C7000v2 combined cable modem/router.

Because my NETGEAR is no longer on Xfinity's approved-device list, I am considering replacing it with an ARRIS SURFboard G36 DOCSIS 3.1 combined modem/router.

However, when I sign in to Xfinity's compatible-device website and select "For Your Plan," the G36 does not appear. Only five standalone cable modems are listed, none with built-in Wi-Fi.

I have several questions:

  1. Compatibility: Is the ARRIS G36 approved for activation on my existing Gigabit Extra 1200 Mbps plan? Will it support my full download speed, and are there any limitations on upload speed, including enhanced upload speeds?

  2. Compatible-device list: Why does the personalized "For Your Plan" list show only standalone modems and no customer-owned combined modem/router devices? Does the G36's absence mean it is incompatible with my plan?

  3. Brother printer/scanner: I previously tried an Xfinity XB8 gateway but reverted to my NETGEAR because my Brother MFC-L8900CDW wireless printer/scanner would not work properly. It currently connects successfully over 2.4 GHz Wi-Fi, and I use both printing and scanning from my Windows 11 desktop, which connects to the router by Ethernet.

    Can an Xfinity employee review my previous XB8 support tickets or account notes to determine what troubleshooting was performed and whether the printer successfully connected to the XB8's Wi-Fi?

  4. Wireless compatibility: Does the G36 allow a separate 2.4 GHz Wi-Fi network using WPA2-Personal (AES) security, to accommodate older wireless devices such as my Brother printer?

  5. Connection reliability: Are there any known G36 compatibility or performance limitations on my service tier, particularly involving intermittent disconnections or reduced speeds?

  6. Rollback: If I activate the G36 and encounter problems, can Xfinity reactivate my existing NETGEAR C7000v2 so I can restore my current working configuration?

I would strongly prefer to continue using a single combined modem/router, rather than purchasing and configuring two separate devices.

I would appreciate clarification before purchasing the G36.

Thank you! [Edited: "Personal Information”] 

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19 hours ago

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XfinityEricB

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1 day ago

Hello user_oczisb, and thanks for reaching out with your great questions. I'll go in order to help the best I can.

1. Yes the G36 is compatible with your current service. 

 

2. You can check our list here https://www.xfinity.com/support/internet/customerowned?mboxRed=true&s_tnt=126324%3A1%3A0&adobe_mc_sdid=SDID%3D6189789D191F02E0-640024CB99694709%7CMCORGID%3DDA11332E5321D0550A490D45%40AdobeOrg%7CTS%3D1750172592 and not sure why it's not listed under the For Your Plan. Could simply be it supports higher tiers.

 

3. I can review no problem, but without using the device currently not sure I'll be able to tell if it was ever connected to the XB8

 

4. That one would be more of a question for the manufacturer. We don't have full knowledge of what that device can and can't do. 

 

5. We don't currently have any known issues with the device I can find. 

 

6. You can revert back to a previous device at any time that is on your account. 

 

Please let me know if there are any other questions or concerns we can help with. 

 

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user_oczisb

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@XfinityEricB​ 

@XfinityEricB

Thank you for confirming that the ARRIS G36 is compatible with my service.

I currently pay $80 per month for Gigabit Extra (1200 Mbps), using my own NETGEAR C7000v2 modem/router.

Could you please clarify the following?

  1. Current speeds: What are the maximum advertised download and upload speeds (in Mbps) currently included in my $80/month subscription? Is my address eligible for enhanced upload speeds?

  2. G36 replacement: If I replace my NETGEAR modem/router with the ARRIS G36 modem/router, will my monthly price remain $80, and what download and upload speeds would I receive?

  3. Alternative plans: Are there any newer Xfinity internet plans available to me that would provide comparable or better speeds for $80/month or less, using my own modem/router? If so, what are the speeds, monthly prices, and promotional expiration dates? Also, is my current $80 rate promotional, and if so, when does it expire?

  4. Previous XB8 troubleshooting: Yes, I would appreciate your reviewing my previous XB8 support records, particularly whether my Brother MFC-L8900CDW successfully connected to the XB8's Wi-Fi and what troubleshooting was performed.

  5. Rollback: Since my NETGEAR C7000v2 no longer appears on the current approved-device list, can you confirm that I could reactivate this specific modem if the G36 doesn't work out?

I'm requesting information only at this stage and am not authorizing any changes to my account.

Thank you again for your assistance!

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1 day ago

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XfinityEricB

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3.8K Messages

 

user_oczisb I'll need to review the account to answer a few of your questions this time. I'll need a DM with your account information to locate and authenticate your account to get them answered for you please. 

Can you send us a direct message with your full name, name of account holder (if different), and service address please?

To send a "Direct Message" to Xfinity Support:

Click "Sign In" if necessary

Click the "Direct Messaging" icon

Click the "Start new conversation" (pencil and paper) icon

In the "To:" line, type "Xfinity Support"

As you type, a drop-down list will appear. Select "Xfinity Support" from that list.

An "Xfinity Support" graphic will replace the "To:" line.

Type your message in the text area near the bottom of the window.

Press Enter to send it.

How to direct message within Forums https://forums.xfinity.com/conversations/guidelines/how-to-direct-messaging-within-the-forum/697ba1e570934d009185c514

 

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1 day ago

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BruceW

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27.7K Messages

19 hours ago

@XfinityEricB wrote: "... You can check our list here https://www.xfinity.com/support/internet/customerowned?mboxRed=true&s_tnt=126324%3A1%3A0&adobe_mc_sdid=SDID%3D6189789D191F02E0-640024CB99694709%7CMCORGID%3DDA11332E5321D0550A490D45%40AdobeOrg%7CTS%3D1750172592 ..."

Unfortunately that ridiculously long link does not lead to information about the G36. Instead, follow the "See all modems" link near the bottom of https://www.xfinity.com/support/internet/customerowned, and then check the devices listed under the "Compatible modems for enhanced speeds" or "All compatible modems by brand" headings.

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