Today I can´t “find” my Phoscon gateway, the typical IP 192.168.2.2:4530 doesn´t work any more.
After downgrade to version 2.27.3 and reboot of the Pi5 my Safari Browser shows the Gateway where I can login normally.
Can you make a screenshot from your browser debug console? To check if there are any Javascript errors?
The first lines would be interessting like these:
[Error] Failed to load resource: the server responded with a status of 404 (Not Found) (login.js, line 0)
[Error] Origin http://192.168.2.2:4530 is not allowed by Access-Control-Allow-Origin. Status code: 404
[Error] Failed to load resource: Origin http://192.168.2.2:4530 is not allowed by Access-Control-Allow-Origin. Status code: 404 (config, line 0)
[Error] Failed to load resource: Verbindung zum Server konnte nicht hergestellt werden. (config, line 0)
[Error] Origin http://192.168.2.2:4530 is not allowed by Access-Control-Allow-Origin. Status code: 404
[Error] Failed to load resource: Origin http://192.168.2.2:4530 is not allowed by Access-Control-Allow-Origin. Status code: 404 (config, line 0)
[Error] Failed to load resource: Verbindung zum Server konnte nicht hergestellt werden. (config, line 0)
[Error] Unhandled Promise Rejection: TypeError: undefined is not an object (evaluating ‘app.Devicetype.sendMessage’)
(anonyme Funktion) (scanner.js:3:7060)
[Log] Object
Same on iPhone, iPad: no Gateway found with 2.27.4 installed, after downgrade to 2.27.3 everything went fine.
Ok, the problem is that the old login.html is opened. If you type <your ip address:port>/pwa/login2.html then it should work again.
How do you open the Phoscon App in your browser? Did you had a bookmark? Does it work when you click the Phoscon App Button in the deCONZ GUI? When you can call the login2.html then your problem should be solved.