Wi-Fi connects on RG40XX H, but no internet access (Theme Store / PortMaster not loading)

I’m using MuOS on my RG40XX H and I’ve run into a persistent network issue.
The console connects to Wi-Fi successfully (both home network and mobile hotspot), obtains an IP address, and shows as connected. However, nothing that requires internet actually works: Theme Store doesn’t load, PortMaster doesn’t load, and no online functions respond.

Here’s what I’ve checked so far:

  1. Date and time are correct.

  2. DNS was manually set in /etc/resolv.conf (tried 1.1.1.1, 8.8.8.8).

  3. Tried multiple networks (different routers + mobile hotspot).

  4. The result is always the same:
    – Wi-Fi connects
    – IP is assigned
    – but no internet access in any app.

It feels like the network stack is up, but traffic never leaves the device.

Same problem on my RG40XX H, when i’m exit from wi-fi setup network icon become black and not scrappy, not portmaster does not work, but i’m still can connect to device by ssh. i think it is may be incorrect network status, looks like where is no dns server.