Hello thank you for your answers
My situation is there:
My MX have default gateway for my vlans and DHCP only for Specific segments, i have a management vlan 90 and i have the following address
192.168.90.1/28 Default Gateway for MX
192.168.90.5/28 for MS but this address its with DHCP from MX
i have a interface trunk between MX and MS with native vlan 90, when i remove the DHCP in MX and put the address 192.168.90.2/28 for my MS a lost the administration from dashboard. I put a interface L3 but not resolve the issue.
If i use a catalyst swicth the configuration its resolve with command ip default-gateway but in Meraki i dont know what happen.