I found the problem: it was indeed a mistake on my part, I forgot to add a permit rule on the firewall to make the guest wifi access the captive portal address.

@d0ugmac1 Hi, the link you suggested doesn't cover my situation, my network works just fine but there is a problem accessing the Captive Portal from the Guest Wifi clients, as I said the VLANs are...

Hi everybody, I have an Omada OC200 and two EAP225, two SSIDs (office and guest), guest network is, say, on VLAN22. I can connect successfully on guest Wifi but now I'm trying to set a Captive Portal...