With the above constellation, I have the problem, that all AP's CW9164 don't connect to the Meraki Cloud / Dashboard. All Layer 2 Switches also connect only, if I connect to the management Port and statically assign the Management IP address. If I connect with the Management SSID of an AP and set statically all IP information with the default Gateway of the DHCP Server in VLAN 99 (10.10.253.1 on the MX, primary DNS 10.10.253.1, secondary DNS 8.8.8.8), nothing happens. Usually, from my understanding, the AP's will send a DHCP discover (Broadcast), which should received by the DHCP Server of the MX in the same VLAN 99, the DHCP will send a DHCP offer message with the dedicated IP of the AP which has fixed IP assignment by MAC address on the MX DHCP Server and so on. The Access Points should receive there information from the DHCP Server, but it does not. Is there a mistake, do I have forget something ?