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J_East
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Regular Visitor

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10 Messages

Monday, December 29th, 2025 5:14 PM

2.4 GHz signal disappears

I have a number of devices that require the 2.4 GHz signal. Lately at least once per week the Xfinity XB7 router stops broadcasting the 2.4 GHz network. This is true whether I split the bands or use band sharing. Restarting the gateway does not fix the issue. Typically, the 2.4 GHz signal is down for 1-2 days and then randomly comes back. I had the same issue a year ago and swapped out the gateway. That cleared things up for a few months but then the issue returned. There are a number of posts over the past few years in this forum and on Reddit related to this same issue. Not sure why Xfinity has not fixed this. 

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6 hours ago

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XfinityFrank

Official Employee

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2.1K Messages

2 months ago

Hi there, @J_East! Thanks for reaching out to us here on the Community Forum and sorry to hear about the 2.4GHz bank disappearing randomly. I wonder if the issue may be some sort of interference. There are some great tips for optimizing your home network located here : https://www.xfinity.com/support/articles/improve-your-wireless-home-network, specifically the placement information. Check that over and see if anything may make sense with your setup to see if it improves. 

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J_East

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10 Messages

Unfortunately, none of tips worked. The issue truly is that the gateway stops sending the 2.4 signal (down again today). I can use the app to switch off band sharing and give the 2.4 network a new name. Then when I look for available WiFi networks, it is not even listed. Among the many devices that require 2.4 is the Xfinity Home touchscreen. I hate that I am paying for a service that, lately, has only been working around 40% of the time. 

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2 months ago

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XfinityThomasA

Official Employee

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3.3K Messages

 

J_East - Thank you for the update. We'll get to the bottom of this. Are you using any addtional equipment along with your Xfinity gateway?

 

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Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
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2 months ago

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J_East

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No, it is a stand alone Xfinity router XB7 or XB8.

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2 months ago

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XfinityBenjaminM

Official Employee

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2.8K Messages

 

J_East Can you please send a Direct Message with your full name and address? Here are instructions on how to send a DM in case you need them:

 Click "Sign In" if necessary
  • Click the "Direct Message" icon (upper right corner of this page)
  • Click the "New message" (pencil and paper) icon
  • Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list
  • Type your message in the text area near the bottom of the window
  • Press Enter to send your message

 

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

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2 months ago

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EG

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116.5K Messages

@J_East @XfinityBenjaminM 

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.

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

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2 months ago

user_tol

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1 Message

2 months ago

Just started having this issue a few days ago.  Rebooting didn't fix it, but resetting everything fixed it for a few days.  Now the 2.4 is down again. 

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Rf94086

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1 Message

2 days ago

Same issue here. I have 2.4, 5, and 6Ghz networks enabled and the 2.4 SSID keeps disappearing and causing all of my smart devices and smart LED bulbs to stop working. Has been happening for the last couple of months. Enabling and disabling the network causes the SSID to appear for maybe a day or two and then disappear again. This must be a recent SW or FW update. Why is this still a problem? Are you xfinity employees escalating this as a real problem to engineering or are you just going to keep pointing us to the same non-working steps?

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