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lnxfrk
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22 Messages

Monday, December 19th, 2022 4:11 AM

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Unable to ping WAN IPv4 Gateway since last planned maintenance (15-December-2022)

Just to first say I don't have any issues connecting to the internet, this is more of an observance that the IPv4 gateway IP doesn't respond to ICMP and actually a question of whether this is a known change of behavior. 

As the subject mentions since the last planned maintenance last week it would seem the IPv4 Gateway assigned from xfinity doesn't respond to ping (ICMP). My router has a feature that will monitor the IPv4 Gateway IP using ping to determine if the WAN interface is up or down. The monitor has showed 100% packet loss since the maintenance.

For example after the big outage in mid November I was assigned a new IP which DHCP also set the IPv4 gateway to 66.41.216.1 - router logs show no issues up until the maintenance on late 15-December / early 16-December. The route shows the IPv4 Gateway IP assigned was 66.41.232.1 but with the same IPv4 address I already had. The router attempts to ping 66.41.232.1 all fail (100% packet loss). 

I'm able to workaround the router showing the WAN GW is down by using another IPv4 address such as a DNS server but wanted to ask if this expected with recent changes or does this perhaps identify some other upstream problem. Again, none of our devices have any connection issues, it's just a warning that I have found a workaround for. Interesting enough the IPv6 Gateway IP that is assigned works just fine with the monitoring the router is doing. 

TIA

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2 years ago

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lnxfrk

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22 Messages

2 years ago

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XfinityLinda

Official Employee

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1.5K Messages

Thank you for connecting with us here in our community, @lnxfrk! Have you disconnected, and rebooted your modem since the maintenance work? We would suggest you do that, but please make sure to disconnect your router to ensure the modem gets the full firmware update. Let us know if anything changes once you go back online. 

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.
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2 years ago

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lnxfrk

Contributor

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22 Messages

Thank you XfinityLinda - Yep, I did the full disconnect of everything from the modem, power off / unplug for a minute, start the modem and wait until it's booted and reconnect. I had the same results, the WAN Gateway IP assigned by Xfinity DHCP came back with the same IP and that IP is still not pingable. As mentioned my connectivity doesn't seem impacted, the oddness with the router monitor notification was a bit concerning at first since it assumed something was down.

2 years ago

0

XfinityAngie

Official Employee

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1.6K Messages

I would be happy to take a closer look at your account. Please send me a DM with your name and full address by doing the following: 

Ensure you are first signed in, then you will see an icon at the top right of your page.
From there, click the 'New Message' icon. In the 'To' field, type 'Xfinity Support'.
Type your message in the text area that appears at the bottom of the window and hit enter to send. An official employee, such as myself or whoever is first available, will respond.

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

2 years ago

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lnxfrk

Contributor

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22 Messages

Thank you XfinityAngie - I think for now I'll hold off with looking into this further as it's just a minor thing that doesn't seem to be causing any sort of other issues. The signals at the modem look great, and connectivity has been really stable. I'll save the reach out via DM for a bigger issue :)

Happy Holidays!

2 years ago

0

XfinityAngie

Official Employee

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1.6K Messages

We are here for you 24/7 if you need us! Happy Holidays to you as well! 

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

2 years ago

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