Fix Wi-Fi client isolation (guest and public Wi-Fi)
Same Wi-Fi but the devices still can’t see each other? The network probably isolates devices. Here is how to check and get around it.
Many routers can stop devices on the same Wi-Fi from talking to each other. This is called client, AP or station isolation. It is almost always on for guest networks and public Wi-Fi in cafés, hotels and offices.
Steps
Use the main network
At home, connect both devices to your main Wi-Fi, not the guest network. Some routers also isolate the 2.4 GHz and 5 GHz bands from each other: put both devices on the same one.
Turn isolation off (your own router)
In the router’s settings look for AP isolation, Client isolation, Wireless isolation or Privacy separator and switch it off for your main network. The name depends on the manufacturer.
Not your network? Use the hotspot
On public or office Wi-Fi you can’t change the setting. Use the phone’s hotspot instead, or connect already-paired devices through Connect over the internet.
How to tell
If the devices were connected at home but never appear on another Wi-Fi, even with the firewall configured, isolation is the likely cause. Pairing needs a direct path, so pair on your home network or the phone’s hotspot.