This can be a frustrating issue, but there are several things you can try to troubleshoot it:

1. Check Sangfor documentation and support:

    First, consult the Sangfor documentation for your specific captive portal version. There may be known issues or specific configuration steps for social media login and Android devices.
    If you can't find the information you need in the documentation, contact Sangfor support directly. They will be able to provide you with the most accurate and up-to-date troubleshooting steps.

2. Verify social media platform integration:

    Make sure your Sangfor captive portal is properly integrated with the social media platforms you want to use for login. Double-check your API keys, redirect URLs, and other configuration settings.
    Some social media platforms may have specific requirements or limitations for captive portal integrations. Review the platform's developer documentation for any relevant information.

3. Test with different Android devices and browsers:

    Try accessing the captive portal using different Android devices and browsers on your network. This will help you narrow down if the issue is specific to certain devices or software.
    If you find that the login dashboard works on some devices but not others, it could be a compatibility issue with a specific Android version or browser. You may need to wait for an update from Sangfor or the device/browser manufacturer to fix the problem.

4. Check for network connectivity issues:

    Ensure that your captive portal server is accessible from Android devices on your network. You can use tools like ping or traceroute to verify connectivity.
    If there are any network connectivity issues, this could prevent the login dashboard from loading properly.

5. Consider alternative login methods:

    If you're still having trouble with social media login for Android users, you may want to consider offering alternative login methods, such as email address and password or captive portal vouchers.
    This will ensure that all users on your network can access the internet through your captive portal, even if they have trouble with social media login.

This can be a frustrating issue, but there are several things you can try to troubleshoot it:

1. Check Sangfor documentation and support:

    First, consult the Sangfor documentation for your specific captive portal version. There may be known issues or specific configuration steps for social media login and Android devices.
    If you can't find the information you need in the documentation, contact Sangfor support directly. They will be able to provide you with the most accurate and up-to-date troubleshooting steps.

2. Verify social media platform integration:

    Make sure your Sangfor captive portal is properly integrated with the social media platforms you want to use for login. Double-check your API keys, redirect URLs, and other configuration settings.
    Some social media platforms may have specific requirements or limitations for captive portal integrations. Review the platform's developer documentation for any relevant information.

3. Test with different Android devices and browsers:

    Try accessing the captive portal using different Android devices and browsers on your network. This will help you narrow down if the issue is specific to certain devices or software.
    If you find that the login dashboard works on some devices but not others, it could be a compatibility issue with a specific Android version or browser. You may need to wait for an update from Sangfor or the device/browser manufacturer to fix the problem.

4. Check for network connectivity issues:

    Ensure that your captive portal server is accessible from Android devices on your network. You can use tools like ping or traceroute to verify connectivity.
    If there are any network connectivity issues, this could prevent the login dashboard from loading properly.

5. Consider alternative login methods:

    If you're still having trouble with social media login for Android users, you may want to consider offering alternative login methods, such as email address and password or captive portal vouchers.
    This will ensure that all users on your network can access the internet through your captive portal, even if they have trouble with social media login.