Re: [IPv6] Evidence of Comcast IPv6 CPE Dual Stack (CPE and CPEP
As you can see above, the router issue has been solved.
The WNDR3700v4 uses a newer Atheros chipset (as opposed to the Broadcom chipset of the v3, or older Atheros chipset of the v2) - thus, no third-party firmware is available (yet).