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user_c5b358
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Wednesday, May 24th, 2023 12:25 AM

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IPv6 for home internet is changing every day

Since the "upgrade" to IPv6, my public address is changing every day and wreaking havoc with my secure logins for web properties I manage. I don't reboot my modem every day, so it's not like it's fetching a new IPv6. My IPv4, on the other hand, is quite static.

Why does this change every day, and is there a way to decrease that frequency?

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2 years ago

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flatlander3

Problem Solver

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1.5K Messages

2 years ago

The DHCP/DHCPv6 servers are upstream from your modem, and there is nothing you can do about their configuration.

When they are working on stuff in your area, leases can change quite frequently (hours.  even less sometimes).   Eventually, the lease times extend, but that can take quite some time if there are "upgrades" going on or power fails in your area.   DHCPv6 was unstable with the renewal to the point of being unusable in my location for quite some time, so I had it disabled for about a year (IPV4 only).   That has only recently changed. 

Perhaps that's an option for you.  Or a static business account if you have to.   Or change authentication methods on whatever you are trying to get to so the origin doesn't matter -- if that is the issue.

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user_c5b358

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2 Messages

@flatlander3​ Thanks for the reply. I may try to see if I can get IPv6 disabled, but it's nigh on impossible finding real support on the Xfinity site (the chatbot is a complete fail).

2 years ago

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flatlander3

Problem Solver

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1.5K Messages

@user_c5b358​ If you are using Xfinity equipment, you won't be able to disable IPv6.  You can on some 3rd party routers/mesh networks -- look for the WAN connection on the router admin setup page, and it's easy on a firewall.  Just don't configure IPv6 on the external interface.   

Depends on what you have to work with. 

2 years ago

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CCJosh

New Problem Solver

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452 Messages

Thank you for taking the time to reach out to our community here on the forums, @user_c5b358. This is certainly not the experience that we want you to have with your network and devices while trying to work with web properties. My team and I would be more than happy to look into this with you. Could you please use the chat icon in the upper right to enter Direct Messaging? From there, go ahead and compose a new message to "Xfinity Support" and send us a message with your name and address. 

 

To send a Direct Message [private message]:

  • Click "Sign In" if necessary
  • Click the "Direct Message" 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 no longer work for Comcast.

2 years ago

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