Switch and APs booted before the router which presumably has the DHCP server and are so don't have an IP on your local subnet? If so rebooting them should help.
I swear I had this problem in the past, and trying to remember what I did to resolve. I think I ended up removing and reassigning the static IPs as there was some clashing going on somewhere.
Switch and APs booted before the router which presumably has the DHCP server and are so don't have an IP on your local subnet? If so rebooting them should help.