Modem glitch causes Comcast IPv6 delay

Comcast (Nasdaq: CMCSA) has run into problems with its IPv6 migration because of a technical issue with the Netgear (Nasdaq: NTGR) cable modems its uses. The issue has caused the cable TV giant to temporarily roll back it IPv6 deployment, though Multichannel News cites a source as saying that both Comcast and Netgear have known about the problem for about two years.

The report by Multichannel News followed the report in EE Daily News of a first-hand experience with the problem by a Comcast customer who writes that blog.

Comcast said a compatibility glitch with an uncertified firmware version in a Netgear CMD31T DOCSIS 3.0 cable modem has knocked out service for some customers. The company said it is holding off the IPv6 transition of these customers until Netgear can fix the issue.

This issue is surfacing a little more than two months before World IPv6 Launch 2012, scheduled for June 6. Comcast is among many service providers, along with their vendor partners, in the midst of transitioning to IPv6 in their modems and routers.

For more:
-check out this Multichannel News story
-see this EE Daily News post

For more:
The second World IPv6 Day is set for June 6
Comcast expanded IPv6 to several states in December

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