If the Wi-Fi keeps disconnecting on those devices, the issue is likely with your internet connection, not the Chromebook. In that case, try rebooting your router, updating its firmware ...
If the internet is not working after disconnecting the VPN on your Windows 11/10 computer, use the fixes provided in this ...
As I put the iPad down the screen turned off, Airport disconnected (I heard the iChat’s sound ... This is the result: As you can see, when I put the iPad (16 GB Wifi, comes from a regular Apple Store) ...