IPv6 service down again?
To be more specific, it got disconnected today at around 7pm (according to monitor log). Even IPv4 seems to be disconnected for 3mins (no one was home at that time), when connection came back online IPv6 went dead.
When router was rebooted, it was immediately assigned a new IP address range beginning with 222.x, then change again to 27.x.
When IPv6 was last working, it was on IP range 58.x