In short

Recognizing the QR code does not guarantee that the two phones can reach each other. First confirm that both devices are truly on the same local network, then make sure the remote scanned the newest code currently shown by the host.

Check the network first

1. Confirm that both phones use the same Wi-Fi. If you use a hotspot, make sure one phone has enabled it and the other shows that it is connected. Enabling mobile data on both phones does not create a local network.
2. Avoid guest networks with device isolation, client isolation, or other settings that block devices from reaching each other. Switch to regular Wi-Fi or a phone hotspot.
3. Temporarily disable VPNs, proxies, or network tools that take over local traffic on both phones, then pair again.
4. Keep the host QR dialog and the remote scanning screen open until pairing finishes.

Then check the QR code

• A QR code is valid for 5 minutes by default. After it expires, tap “Refresh QR code” on the host and scan the new code.
• Refreshing immediately invalidates the previous code. Do not scan a screenshot, old photo, or code previously saved on another device.
• If a new code is being generated, wait until it appears completely before scanning instead of tapping refresh repeatedly.
• The remote needs camera permission to scan. If permission was denied, use the prompt on the page to allow it again. The camera is used only for on-device QR recognition.
• If the host says it is establishing an encrypted connection, do not scan again; let the current connection finish.

If it still does not connect

Close collaboration on both devices, reconnect them to the same network, and generate one new QR code. If the issue remains, record the message shown on each phone, both phone models, and the network setup, then send feedback from the bottom of Help Center.