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is ? IPV6 enabled

so after the new year my modem receivced a config update that change the MDD IP mode to V6 only 

still no IP6V addresses from my router I tried but dhcpv6s and radvd the modem is not broadcasting anybody have a clue whats going on is this a WIP for the rochester/batavia area ? 




Re: is ? IPV6 enabled

which modem is it?

TWC has an issue with 6141's with version 8 hardware.


Does it work without a router?

Is your router set to autodetect wan settings and did you reset it? (do so at your own risk....)




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Re: is ? IPV6 enabled

Model Name: SB6121
Vendor Name: Motorola
Firmware Name: SB_KOMODO-
Boot Version: PSPU-Boot(25CLK)
Hardware Version: 5.0
Serial Number: redacted
Firmware Build Time: Aug 30 2012 15:35:46

Re: is ? IPV6 enabled

they consider the 6121 and other 4x4 bonded modems obsolete as well as all single ch docsis 2 modems... good luck getting any support from them....

 bypass your router...

see if ipv6 works

 The IPv6 dns is in KS and is lagging in the 10-30 second range whereas the IPv4 is a lot closer, either in Columbus Oh or Albany NY, and responds a lot faster.

 Do a tracert to


 then do one to your IPv6 DNS



Valued Participant

Re: is ? IPV6 enabled

a full factory reset of them modem seems to have done it ...