Visitor

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3 Messages

Tuesday, July 29th, 2025

CODA56 modem randomly dropping internet connection

I have a new Hitron CODA56 modem on Xfinity cable internet. Last 4 months or so i've been randomly dropping connection. Seems to happen during high loads but I have Gigabit Extra.
I also have my own router: TP-Link Deco XE75.
I have seen this issue posted before so I will try to add as much info as possible to avoid redundancy.

All devices drop at the same time as the router goes red indicating no internet. Plugging PC into the modem directly reveals no internet, even though lights on modem seem fine (blue and green).

Restarting the modem does seem to fix the issue, however like the previous poster of the same issue, rebooting the modem EVERYTIME is not practical.

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Official Employee

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2.7K Messages

3 months ago

user_o1suns. Thanks for posting on our Community Forums about your modem concerns. I'm sorry to hear about the random disconnections. I know that can be frustrating, and we'd appreciate the opportunity to help get this resolved for you. Could you please send our team a Direct Message with your name and service address? Our team can take a further look at this issue.

 

To send a Direct Message:

Click "Sign In" if necessary

• Click the "Direct Messaging chat" icon

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

• Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list that appears. The "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

 

 

Visitor

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3 Messages

Visitor

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3 Messages

Update: For anyone looking at this issue in the future: contacting Xfinity directly via DM (above) seems to have resolved the issue. Not sure what they did, but haven't had any issues since. Possibly a firmware upgrade that Hitron made but again unsure. Sorry if this is unhelpful in your search.

Visitor

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1 Message

2 months ago

Adding to the chorus. Our CODA56 was fine when first purchased late last year, but now seems to drop connection every 1-3 weeks although status lights are fine.

Official Employee

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969 Messages

Hello @user_3l4x2d Sorry to hear you are experiencing drops. If you'd like us to check the account to see if we can see any causes of the issues we would be happy to do so. Send us a direct message with your full name and the service address, and we can see what's going on. 

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. 

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

Visitor

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1 Message

1 month ago

I have the same issue.

The connection between the modem and my router (OpenWRT One) regularly drops from my full service speed (600 MBPS) to abysmal (5-20 MBPS). Forcing the router to restart the network interface to the CODA56 restores the full speed connection. This is not a reasonable solution...

Official Employee

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1.7K Messages

@user_dgrwep, hello! Have you had any troubleshooting done to verify your signal levels?

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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