Is the MX has the WAN using NATed IP? If not, take a look here:
Network-wide > Configure > General > Device configuration
![alemabrahao_0-1712673075279.png alemabrahao_0-1712673075279.png](https://community.meraki.com/t5/image/serverpage/image-id/36677iD12886BB0618B75A/image-size/medium?v=v2&px=400)
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
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