Ether 1 is setup to be my dhcp client for my internet service provider but keeps loosing it’s ip address many times a day and I dont know what to do i have fought with comcast over and over about this issues.
except some extremely rare exceptions, MAC address is NEVER a sensitive data...
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What are present on that particular user export are: email, serial number, cloud IP, and some passwords...
My PC have F8:1A:67:00:1F:55 as MAC, and my RouterBOARD have CC:2D:E0:31:13:8E
and now? What "sensitive" data you can obtain?
Is just one example, is not for teaching, but for try to explain the useless fear against MAC address (except some rare cases, but often require physical access to LAN...)
... like serial number, which serves as hostname part of FQDN used in mikrotik's own DDNS. Which can represent much larger attack surface than WAN interface's MAC address.