ahzurnie's profile

Visitor

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3 Messages

Sunday, July 20th, 2025

Arris S34 with 2GB service

I upgraded 1200 MB and 35 MB up Internet to 2000MB down and 250MB up two weeks ago. As I had Arris S33 modem, I decided to replace it right away with Arris S34 modem. I used the self-activation for the new modem. Everything worked fine for a week (I was getting 2300 MB down and 300 MB up). This is impressive.

After a week, the down speeds started to go down to something like 80 MB. Various speed tests showed the speed hand "freezing" (staying at the same value) and some websites or apps started to freeze at the same time.

A S34 cable modem reboot typically solved the issue.

Decided to chat with an Xfinity agent and was told that my account was still showing the old speed, so he adjusted it. He also dispatched the new boot file to the modem. and the modem was rebooted afterwards. Everything went back to the high speeds of 2300/300 mb (for a few hours). And back to up speeds of about 80 mb. A cable modem reboot fixed it again for a few hours.

My Internet speeds were identical all the time (before the up upgrade to 2GB) at 1300 MB down and 40 MB up. I did not change any networking components - I have my network set to 2.5GB and everything matches. Two of my Windows 11 computers have 2.5 GB Ethernet connections. I have four WiFi 7 ceiling access points connected via 2.5 GB Ethernet cables. Both wired and wireless speeds are impacted.

Any suggestion what else can be done for my case of Arris S34 with the 2GB Internet?

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Accepted Solution

Visitor

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3 Messages

1 month ago

I hope the issue is resolved. I do not know the solution (and hope it will not reappear). 

I suspect that it took some time to match the new Internet speed to the one in the user database. 

Official Employee

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2.1K Messages

1 month ago

Thank you for connecting with us here in our community about your speeds, @ahzurnie. We're happy to help. Have you checked to make sure your WiFi7 is compatible to your S34? 

Visitor

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3 Messages

1 month ago

To make things simpler, let’s forget WiFi and concentrate on the issue as experienced on Windows 11 computers with 2.5 GB Ethernet cards connected to 2.5 GB switch.

Official Employee

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489 Messages

@ahzurnie If you could send our team a direct message with your full name, the name listed on the account (if different), and the service address associated with your account, I'd be more than happy to look into this for you.

To send a "Direct Message" to Xfinity Support:

Click "Sign In" if necessary

Click the "Direct Messaging" icon or https://forums.xfinity.com/direct-messaging

Click the "New message" (pencil and paper) icon

The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there

- As you are typing a drop-down list appears. Select "Xfinity Support" from that list

- An "Xfinity Support" graphic replaces the "To:" line

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

Press Enter to send it.

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Expert

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113K Messages

1 month ago

@ahzurnie @XfinityQuemekia 

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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