IPv6 not working on laptop, works on other computers on LAN

My router is supplying IPv6 to all the LAN clients in my house. In particular, IPv6 is working on my Windows 10 desktop computer, but not this laptop. This laptop is a Windows 10 Pro OS, and I don't see IPv6 connectivity when I look at the connection in the Network and Sharing Center. When I look at the network adapter (wired) properties, it shows that IPv6 is enabled in the networking software.

The laptop used to have IPv6 connectivity with Windows 10 before I installed the giant threshold 2 update last night, now IPv6 not working on the laptop.

Any ideas of what I can do to diagnose the problem with the laptop? I've run the Windows troubleshooters, and they don't find any problems (of course). Even my Apple and Android mobile clients have IPv6 connectivity.

Thanks!

Never mind, my desktop was telling me that it had IPv6 access when it had actually lost that. Rebooted router and IPv6 is back, and so are both of my Windows 10 systems.

Sorry.