Hi all

 

Recently I've seen a strange behavior when connecting any iOS/macOS device to the WiFi network of several of my clients.

 

The issue happens when connecting to a WiFi SSID, nothing happens and the iPhone/macBook WiFi symbol on the status bar does not show. When unlocking the device and then generating some traffic (browsing, or whatever), then it displays a window dialog with the title "captive.apple.com" and a white window with the text "Success". Then at that point the WiFi connection symbol shows up in the status bar.

 

I've read that "captive.apple.com" is the way of checking or forcing if there is any captive portal. I have not set any, it even happens with fresh installations.

The controller is a OC200v1 in all cases, and the WiFi are EAP660 HDs, but I think it also happens with other APs. The WLAN networks each have their own VLAN, and I've read that there are some problems if the client receives two DNS servers that are the same IP from the DHCP interface. I've configured all VLANs to give its DNS info automatically, and even tried by setting by hand the first DNS as the VLAN interface IP and the second as the Cloudflare ones DNS. But no success either.

 

I think this is an important bug, because there are people that rely on WiFi calling and when they go into the office, the iPhone connects to the WiFi automatically but does not trigger the captive portal check, doesn't get an IP and then it cannot receive calls. Aside from the questioning of everybody about "why is that showing up in my phone?".

 

Did you find yourselves in the same situation? Did you find a solution?

Thanks!!