@jbp 

Good day,

Sorry for the delay.

Have you tried to clear the DNS caches and browser history to have a look?

Did you test one more device to have a look?

And if you enabled the private address on this device, please try to turn it off;

For IOS devices: https://support.apple.com/en-us/HT211227

For Windows 10 devices: https://it.nmu.edu/docs/disable-random-hardware-address-windows-10

Android: Settings app -> Network and Internet -> Wi-Fi ->Connect to deco Wi-Fi -> Tap the gear icon next to the current Wi-Fi connection -> Advanced ->  Privacy -> "Use device MAC"

Thank you very much and wait for your reply.