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Visitor

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2 Messages

Tuesday, June 21st, 2022 7:42 PM

Closed

Disappearing Modem Event Logs

I've been experiencing intermittent T3 timeouts starting this month (which is not what this post is about). Since my modem was
about 10 years old I replaced it with a new Motorola MB7621. I'm still seeing the timeouts "Started Unicast Maintenance Ranging - No Response received", etc in the modem event log, which I kind of expected.

But here's the issue, I never seen more than one or two messages in the event log at a time. Whenever I look, if a new message appears any older message will have disappeared.

The modem is not getting power cycled, the uptime is not reset. I am not clearing the logs.

Official Employee

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933 Messages

3 years ago

Hi @user_82d19c, thank you for reaching out. I know how important it is to get your modem working correctly.  I'm sorry to hear you're experiencing issues.  I know what it's like not having my own service working. It can be a nightmare! What type of modem are you using? 

Visitor

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6 Messages

3 years ago

There are other users who have reported logs missing. My device doesn't record *any* event logs and my firewall logs have been limited to same day only. Before a support call last week I had standard firewall logs even if no events were showing. 

I first believed it was due to reset. I now suspect Xfinity is using scripts to limit access to gateway logs entirely or to delete problematic entries.

Contributor

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160 Messages

3 years ago

Something similar happens with my SB8200. 

Every 5 or 10 minutes I get a "No Ranging Response received - T3 time-out" error, and every time I get a new one, if the previous error was also a T3 time-out that previous one gets erased from the log.

It wasn't always like that, and I first noticed it sometime last month.

My service is good though, so I just wrote it off to a firmware update or maybe a change in the modem's docsis profile.

Visitor

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2 Messages

@zip21222​ 

That's interesting.

I replaced the Motorola MB7621 (because of the disappearing event logs) with an SB8200, that solved the event log issue for me. I'm seeing errors in the logs a few times each day going back about five days currently, 50 total messages.

I haven't pursued a fix for the actual issue reported in the logs yet.

Contributor

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342 Messages

Hello @user_82d19c  Thank you for reaching out to us. Are you still seeing errors in the logs? 

Could you please send our team a direct message with your full name and full address? Our team can most definitely take a further look at this issue.

To send a "Direct Message" to Xfinity Support:

Click "Sign In" if necessary

Click the "Direct Messaging" icon or https://comca.st/3EqVMu7

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

 

See https://comca.st/3KQF8q9 for an example.

I no longer work for Comcast. 

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