> What the problem actually was > > The Debian installation on the external USB‑C SSD did detect the AX200 PCIe > device and loaded the iwlwifi module, but the required firmware was > missing. Because of this, the interface never became operational, and > NetworkManager only used the external TP‑Link USB adapter.
Makes sense. The only remaining mystery is why you got: >> > - lspci shows no wireless device >> > - lsusb shows no Bluetooth controller >> > - rfkill shows nothing >> > - dmesg contains no firmware loading attempts Based on your above description, I'd expect both a `dmesg` message about missing firmware and some relevant entry in `lspci`. === Stefan
