Frequent Visitor
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9 Messages
Arris S34 on NextGen headend with 1.2 up/down account locked at 40 up.
My customer-owned Arris S34 has successfully locked onto the upstream OFDMA channel (ID 43 at 36.2 MHz) on my local node, confirming mid-split is active on my line. However, my uploads are hard-capped at 40 Mbps. Please check the rate codes on my account to ensure the Next-Gen upload tier code is manually bound to this MAC address so it pushes the correct x2 configuration file.
| HFC MAC Address | [Edited: "Personal Information"] |
I tried chat support, but they were more interested in selling me slower plans for more money. They told me to reboot my modem (again) and wait an hour. Not sure how waiting an hour would change anything. That said, it's only been 50 minutes, but I don't really expect anything to magically happen in 10 minutes. I'll post back if I'm wrong.






lylehm-fred
Frequent Visitor
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9 Messages
2 days ago
A few other notes...
As expected, nothing changed after an hour. I have not rebooted the cable modem since the agent suggested that as the fix.
I'm running the speed test directly on my ASUS BQ16 Pro WiFi 7, 10Gbps wire-speed router (test built into the router's os).
The router is connected at 2.5Gbps directly to the Arris S34's 2.5 port with CAT6a cable.
The Arris S34 is connected just a few feet away from the demarc. There is a "PPC POEGB-1G70CW Ground Block with Integrated MoCA POE Filter" between the incoming coax cable and the patch cable leading to the S34. There are no other devices, no splitters, and no daisy chains - coax stops at the S34.
(edited)
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XfinitySeth
Official Employee
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1.5K Messages
23 hours ago
Good day lylehm-fred 👋 I'm glad you came to our community for help with your speeds, and you're in the right place for help! If you're in an area that qualifies for those enhanced network speeds, we definitely want to make sure your compatible equipment is getting the most it can. If you could send our team a direct message with your full name, the name listed on the account (if different), and the full service address associated with your account, we'd be happy to review your internet provisions to ensure you're getting the right configurations sent through 👍
How to Send Us a Direct Message:
You can see how to send us a direct message here,
How to: Direct messaging within the forum | Xfinity Community Forum
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EG
Expert
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120.8K Messages
23 hours ago
@lylehm-fred @XfinitySeth
Please circle back here and post any possible solutions for the issue here in these open public forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.
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lylehm-fred
Frequent Visitor
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9 Messages
18 hours ago
UPDATE: Although the Xfinity plan on my account says 1.2 / 1.2 speed, it's a legacy plan and isn't really 1.2 up; basically it's mislabeled.
I'm told I need to switch plans to get NextGen speeds.
Also learned that my DOCSIS 3.1 Arris S34 will only reach (up to) 444Mbps upstream on the Xfinity network. To get full-speed uploads, an Xfinity DOCSIS 4.0 device is needed, currently the XB10 (gateway) or XD4 (modem only).
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