Another broken dhcpv6-pd complaint on brand new DPC3939B
I, too, am having the prefix delegation neighbor discovery issue noted in this post. My Cisco DPC3939B modem worked flawlessly for years but a few months ago started randomly rebooting. I expected the PD to change since the DUID requesting the prefix would be different, but what I did not expect is that IPv6 would stop working cimnpletely. 90% of my traffic is v6 (yes, I have tracked it for years), and now the entire network is a dunpster fire since I no longer have any IPv6 connectivity. My router does not support ndp-proxy, so I am now stuck with a completely broken network. I would have suffered through the rancom reboots had I known this would have been the result of a CPE replacement. My old one must have had an older firmware build, as there are some other subtle differences - but I need this fixed, a pretty big part of my job involves working with IPv6 and this complete lack of it is literally costing me productivity.