Windows 10: DHCPv6 errors Solved

  1.    30 Mar 2016 #1

    DHCPv6 errors


    Since installing a new modem/router (gateway for Comcast) two DHCPv6 errors, rarely seen earlier, have been appearing with some regularity...

    "Your computer has lost the lease to its IP address 2601:1c0:5702:9370::1 on the Network Card with network address 0xF46D043BC2BE."

    "Your computer was not able to renew its address from the network (from the DHCP Server) for the Network Card with network address 0xF46D043BC2BE. The following error occurred: 0x5B4. Your computer will continue to try and obtain an address on its own from the network address (DHCP) server."

    To banish them, the following has been tried.

    ipconfig /release
    ipconfig /renew
    ipconfig /flushdns

    Various forums have been reviewed, with no definitive solution. SFC shows no errors. Windows 10 Pro, build 1511.

    Both Comcast and Arris (gateway manufacturer) disclaim responsibility for the messages. Clues?
      My ComputersSystem Spec


  2. Posts : 3,230
    10.5 Home 1803 x64
       31 Mar 2016 #2

    Have you tried to setup DNS IPv6 servers manually?

    You could also try some of those reset commands:

    [Batch] Windows Network Fix - Pastebin.com

    For the record, unless you need IPv6, it is better to disable it.
      My ComputerSystem Spec

  3.    03 Apr 2016 #3

    Continued observation has confirmed that the message is generated when DHCPv6 lease time (default one-hour) expires. Apparently the prior modem had a longer expiration, so the error rarely appeared. Expiration time setting in the new unit has been increased.
      My ComputersSystem Spec


  4. Posts : 4,540
    Mac OS High Sierra 10.13.5
       03 Apr 2016 #4

    IPv6 is not being used by ISP's yet, because it opens you up to a huge security risk.

    Just disable it on the gateway and in Windows.
      My ComputerSystem Spec


 

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