To resolve the issue of the BiP application being unable to access the server, you can follow these detailed steps:

1. Check Your Internet Connection
Ensure your device is connected to the internet either through Wi-Fi or cellular data.
- If you are using Wi-Fi, disconnect and reconnect to the network. Alternately, try switching to a different Wi-Fi network if available.
- For cellular data, ensure your mobile data is turned on in your device settings, as well as in the BiP app.

2. Verify Data Usage Settings
Go to your device's settings to ensure that BiP is allowed to use cellular data:
- Open Settings on your device.
- Locate and tap BiP from the list of applications.
- Ensure that the Use Cellular Data option is enabled.

3. Restart the BiP App
Sometimes, simply restarting the application can fix connectivity issues:
- Close the BiP app completely.
- Restart the app from your app drawer or home screen.

4. Reboot Your Device
A device reboot can resolve temporary issues:
- Restart your smartphone or tablet, allowing it to refresh all applications and services.

5. Update the BiP App
Keeping the app updated is essential for optimal performance:
- Open the app store on your device (Google Play Store or Apple App Store).
- Search for BiP and check for updates. If available, download and install the latest version.

6. Clear Application Cache and Data (Android only)
If you're using an Android device, clearing the app cache might help:
- Go to Settings > Apps > BiP.
- Tap on Storage and then select Clear Cache and Clear Data.

7. Check for System Updates
Ensure your device's operating system is up to date:
- Go to Settings > System Updates and check if there are any pending updates.

8. Try Reinstalling the App
If the issue persists, uninstalling and then reinstalling can help:
- Uninstall BiP from your device.
- Reinstall it from the app store.

9. Check BiP's Server Status
Sometimes the issue might be on BiP's end. Check online for any reports on server outages that may be affecting connectivity.

10. Consult BiP Help Resources
If all else fails, visit the BiP Help Center for further assistance or troubleshooting specific to your issue.

By following these steps, you should be able to resolve the connection problem with the BiP application. For visual guidance, you can also explore tutorials on YouTube such as this one: Fix BiP App Network Error - [learn more] or check further details here How to Solve BiP Connection Issues - [learn more].