When I try to configure it, it attempts to retrieve the network information, but it says the network is unstable.

The internet works perfectly, with IPTV running without any issues. My Shelly devices are also functioning normally. However, the Ring Intercom won’t configure.

I used my phone as a hotspot for setup, and it worked.

I also removed the SIM card from the router and configured it using the DIGI app, but the problem persists.