webGUI stuck at "Unable to connect to Home Assistant -RETRY" no access from https://192.168.0.xxx:8123/lovelace/default_view

Hi there.
from yesterday I can only access HA through the android app. Both from local and from 4G.
I can’t log properly with any browser or any device (PC and Android).
Looks like everything is working, I upgraded the core and ESPHome without issues from the smartphone.

immagine

Resolved.
I switched the VPN to a national IP, and refreshed the certificate in the browsers.
fully working now.