Hi @sppc
Do you use another DNS resolver server or from your ISP?
If another, which one do you use ?
Have you configure IPv4 and v6 addresses resolvers servers ?
Others devices on your network home don’t have this trouble?
Can you try these tests:
Wifi test
- Turn off Wifi and Mobile data connection
- Turn on Airplane mode → Wait 5 seconds → turn off
- Turn on Wifi
- on Settings → About Phone → in IP addresses
What IPs addresses you have? - On browser in private mode, go to https://ip.lafibre.info
- What are results, do you have IPv4 and IPv6?
Mobile test
- Turn off Wifi
- Turn on Airplane mode → Wait 5 seconds → turn off
- Turn on Mobile Data connection
- on Settings → About Phone → in IP addresses
What IPs addresses you have? - On browser in private mode, go to https://ip.lafibre.info
- What are results, do you have IPv4 and IPv6?