When the PBS app reports "no internet connection", there are several common troubleshooting steps you can take to resolve the problem:

1. Check Your Network Connection
- Make sure your device is connected to a working Wi-Fi or cellular network2.
- Turn off Wi-Fi and turn it back on, or try connecting to a different Wi-Fi hotspot2.
- Confirm that Airplane Mode is off2.

2. Cellular Data (on iOS Devices)
- If you're using an iPhone or iPad and relying on cellular data, go to your device’s Settings > PBS and ensure the Cellular Data toggle is enabled (should be green)1.

3. Restart Devices
- Power off and restart your streaming device (phone, tablet, TV, etc.)2.
- Reboot your Wi-Fi router by unplugging it for about two minutes before plugging it back in7.

4. App and Device Updates
- Make sure both your operating system and PBS app are updated to their latest versions2.

5. Reinstall the PBS App
- Uninstall the PBS app from your device, then reinstall it from your device’s app store28.
- On devices like Roku, you may need to remove the channel, reboot the system, then add the channel again3.

6. Check for Network Loads
- Ensure there aren’t other heavy downloads or streaming happening on your network, which can affect the app’s ability to connect4.

If after all these steps you still receive a "no internet connection" error, the issue may be with your network provider, the device itself, or a temporary PBS server issue. Double-check by opening other apps that require internet or visiting a website using the same device to confirm the internet is working generally.

For persistent problems, contacting PBS support with details about your device and network environment may be needed.