Visitor

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4 Messages

Tuesday, March 10th, 2026 1:09 AM

Packet Loss on a regular basis

I have been around the flag pole with Xfinity and this packet loss is just terrible.  I get 30% or more packet loss on a bridged modem that is brand new.  The cable is also brand new and the tech cut all the connectors off and added new the last time I tried.  There is a dud amplifier in this neighborhood and it happens when the temperature gets above 65 and during afternoon hours.

 

I'm a network engineer and this is textbook degrading cable plant.

Water ingress into a connector or failing amplifier behaves exactly like this.  

Surely they monitor this neighborhood equipment?  Don't send the guy at 8 am, send him at 2pm

   Feb 07:   59 ▊

   Feb 08:  169 ████▎

   Feb 09:    0

   Feb 10:    3

   Feb 11:    0

   Feb 12:   20 ▌

   Feb 13:   30 ▊

   Feb 14:   22 ▌

   Feb 15:   90 ██▎

   Feb 16:    0

   Feb 17:   19 ▌

   Feb 18:    5

   Feb 19:    0

   Feb 20:    0

   Feb 21:    4

   Feb 22:  227 █████▋        ← escalation begins

   Feb 23:  191 ████▊

   Feb 24:   34 ▊

   Feb 25:  181 ████▌

   Feb 26:  307 ███████▋

   Feb 27:  347 ████████▋

   Feb 28:  370 █████████▎

   Mar 01:  152 ███▊

   Mar 02:  157 ███▉

   Mar 03:  438 ██████████▉   ← worst day

   Mar 04:  151 ███▊

   Mar 05:    1              ← brief reprieve

   Mar 06:    0

   Mar 07:    0

   Mar 08:  120 ███           ← back again

   Mar 09:  141 ███▌

If you call Comcast, they want to fix your modem or say, hey it looks fine now but this is chronic behavior during high congestion.  And they want to upsell from my 1Gbs to 2.5Gbs, uh huh.

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Official Employee

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1.6K Messages

7 days ago

Hello @user_66rxn4 I am sorry to hear about your packet loss and connection issues. I appreciate you providing what you have tracked so far. We'd love to run a few tests on our end and if needed we can assist with getting an afternoon appointment for you. Please send us a direct message with your full name and service address to get started. 

To send a "Direct Message" to Xfinity Support: 
Click "Sign In" if necessary 
Click the "Direct Messaging" icon 
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. 

Visitor

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4 Messages

I will because the issue continues.  at the moment there is only marginal loss.  As you can see the issue is most significant near 2pm pacific time as usual.

   Hour (MST)  Events  Loss Range

   ──────────  ──────  ──────────

   00:00          2    minor

   14:00          8    ▊           ← starts afternoon

   15:00         39    ████        ← ramping

   16:00         40    ████        ← sustained

   17:00         52    █████▎      ← peak

   20:00          4    ▌           ← brief flare

                           

Official Employee

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2.5K Messages

Thanks! We look forward to hearing from you soon @user_66rxn4.

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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4 Messages

@XfinityMatthew​ I replied a couple days ago but haven't heard back.

Mar 08:  120 events  ███

   Mar 09:  145 events  ███▋

   Mar 10:    9 events  ▎      ← mostly overnight blips

   Mar 11:    4 events  ▏      ← fewer alerts, but 15% loss RIGHT NOW

Official Employee

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3.8K Messages

Thanks for reaching back out, @user_66rxn4! We would be happy to help you with troubleshooting your connection. If you can please reach out through Direct Message, we would be happy to take a look at the signals on our end. 

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

Expert

 • 

116.7K Messages

7 days ago

@user_66rxn4 @XfinityMatthew @XfinityDemitrius @Xfinity Jeniece

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.

(edited)

Visitor

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4 Messages

5 hours ago

I think these helpers might be bots!

I finally chattered with a real person and still no remedy although he agreed there was some issue with the cable plant.  Seems like over-subscribed.  

Essentially don’t expect much between 3-6pm

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