DHCPv6 with Windows 10

[bartjsmit]

Sorry, I can't test with that. You may want to start a new topic around router advertisement without a static ISP range.

Also complain bitterly to your ISP. There are almost certainly more /56 ranges in their block than people on this earth. How many sales are they hoping for?

[ilumos]

For anyone else who runs ipconfig /renew6 on Windows 10 and receives the error:

An error occurred while renewing interface The cluster resource is not available.

I was able to fix it in OPNsense by navigating to Services > DHCPV6 > LAN and entering values for Range From and Range To. I copied the values from Available range.

Previously I had set Router Advertisements to Assisted and enabled the DHCPv6 server, but had not entered in values for the DHCPv6 range, and even though OPNsense allowed me to save the settings without validation errors, it seems that this is an invalid configuration.

Hope this helps someone!