In last 24 hour find that if globally power outage, 11D didn't route any clients to internet until Wan cable reconnect.
2 times was short power outage, less than 1 minute. Behaviour is same. When power restored, AP start try to connect, in 5 minutes (estimate) WLAN start, clients connect to AP, but there no Internet connection, one amber led. After more few minutes leds on AP says that all fine, 2 green solid leds. Clients still wothout Internet connection. Both - wlans and wires clients! If try to connect to portal via any client - 'no internet connection'. If i connect to portal via anothere way to Internet, my AP is online, site health 'OK', show clients is connected, i can see any and all stats is good/green, but no Internet connection from clients.
Connection to Internet appear if i replug wan cable, enough unplug, wait 1-2 seconds and connect again. Connection to Internet with DHCP. Provider have FTTB and DLINK like switch, i think switch need some more time to boot than 11D, may be need some more time to some metroethernet routing adjacency.