With Meraki Support we have found the solution. There were 2 "problems". 1. the access point could not connect to the splash page servers. (185.17.255.128/25, 209.206.57.0/24, 209.206.58.0/24 on TCP 80 and TCP 443) 2. set "Access control" ->"Controller disconnection behavior" to "Restricted". That solved our problem. ... View more