Hello @alemabrahao,
Thank you for providing this information.
There are some DHCP option limitations regarding the MS390 and Catalyst 9300 models. Since this initial post, the unsupported DHCP options have been updated in the Setting Custom DHCP Options documentation under the section 'Unsupported DHCP options on MS390 and Meraki-managed C9300'.
Please let me know if this addition to the documentation is acceptable and helps to address the matter.
Best,
Feli
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