Lost my IPv6 /56 this evening

I was able to get back to a /60 by configuring wide-dhcpv6 to specifically request a /56. With my SB6141, this was not necessary and I was given a /56 by default.

However, I'm still unable to get a /56 with the new SB6190 and my Deluxe 250 service. I would like to restore the larger prefix delegation if someone from Comcast can help me.

After making a 3rd call to front-line support, I finally got Comcast Business Internet advanced tech support to return my call on this issue, several days after my original call and despite assurances that I would be called within 4 hours of my first report.

The tech I spoke with told me that there was nothing he could do to restore my /56 because, "IPv6 is basically unsupported for dynamic customers." He expressed genuine surprise that I was able to make any kind of prefix delegation work at all, in fact, despite my insistence that not only have I been doing that for the 3 years I've had service up until last week; but also that a quick Google search would reveal that so have literally thousands of other people, both Xfinity and Business Internet users alike.

Anyway, that was a deeply unsatisfying interaction. I have been recommending Comcast Business Internet to friends and coworkers for several years based on the outstanding service and competent technical support that I've received during my years as a customer, but I will have to seriously re-think that recommendation after this incident, I'm afraid.

Hello drewhess and welcome to forums.

I apologize for the recent experience with customer service. Are you still needing assistance with your IPv6 delegations?

Hi Michael. Yes, I am still not receiving a /56 delegation, only a /60. Is there something you can do to restore the /56 delegation?

Unfortunately due to the equipment being owned by I am do not have remote access to its provisioning. I do have the option to push a temporary IPv4 only mode forcing re-registration to the network. That laps in time may allow the IPv6 routing table to push that delegation to a residential account in the neighborhood. I cannot guarantee that this will work and the process can take up to 40 minutes to complete. If this is something you would like to try please let me know when is best for you (AM|PM)

Hi Michael, thanks again for your offer to help!

What's the worst case scenario here if this doesn't restore a /56 prefix? Will I still receive at least a /60?

Yes you will, this change just speaks to the network with an IPv4 address for a short time. The network will notice you with that address and begin adding you to the table yielding at least a /60.

Hi Michael,

That sounds great. I assume this is something you can schedule to happen automatically? Any time tonight (Friday) between about 6:30pm Pacific and 10:30pm would be fine. If that doesn't work, then anytime this Saturday or Sunday morning between 12:01am and 7am would work.

thanks!

Still no /56, and now I don't even have a stable /60 anymore -- it seems to change every week or two. Sigh.

Drew,

I have Comcast Business and I have a /28 of IPv4 and a /56 of IPv6 both static, assigned from Comcast.

The question I would pose to you is the following:

It is important to me to have static IPs.  (I run servers)   Because of this I pay a lot of extra money to Comcast for a business account so I can get them.  I ALSO get stuck with a modem 'rental' fee that Xfinity users don't have to pay for a POS cable modem 

How fair is it for a dynamic customer on Xfinity that pays less than I do for a lot higher bandwidth, to get the same static IP assignment?

Now, I would be the first to agree that Comcast should NOT be sticking it to us business customers up the wazoo for lots of extra money

But it seems to me that what is actually going on here is the same thing that old Ma Bell did - use us business customers to subsidize cheaper service for residential users.

Would you support raising residential prices a little so that costs between the tiers could be equalized?  I have t assume you don't support paying more money for business service already (since you aren't doing it)