I have Mutiple portal for different users and the SSID is open so anyone can connet but they have to pass the Portal auththication to access the internet.. so that i have notice is that when a device

Dont Assign any vlan to maximum user where as some of them have vlad id.

when ever some one trying to login through the omada portal it says "the nework that youre trying to join has securtity issues. then Continue to Anyway Via Browser then i have the option to put the id

I have a VLAN named "admin" that has no speed restrictions. My current internet speed is 300 Mbps. However, in the wireless network named "admin" with the same VLAN, the speed is restricted to 5 Mbps.