@Gabrieltga 

Gabrieltga wrote

I released this mode to customers for several weeks until I realized they had access to my entire network.

I put it at risk, by activating her in omada says: 'With Guest Network enabled, guest network will block clients from reaching any private IP subnet. ",

I don't think posting such info makes sense. Perhaps it's not configured in a correct way. If you have some doubt in one feature on the product, why not taking some pictures to describe the issue in details and what you have done? I'm also new in this community, but I always learn much from other topics, also find that screenshots are definitely the best way to communicate what is going on.