The error message "The current device cannot connect to the Internet and cannot obtain SP update" suggests that your Sangfor Firewall cannot connect to the internet for some reason, which is preventing it from downloading software patches and updates. Here are some things you can try to troubleshoot the issue:

1. Check your internet connection:

    Ensure your network cable is securely connected to the Sangfor Firewall and to the internet router or modem.
    Verify that the internet connection on the router or modem is working properly.
    Try connecting another device to the internet through the same router or modem to confirm it's not a general internet issue.

2. Verify the network settings on the Sangfor Firewall:

    Log in to the Sangfor Firewall web portal.
    Navigate to the network settings section.
    Check if the correct IP address, subnet mask, and gateway are configured for your network.
    Ensure the DNS server addresses are properly configured.
    If your network requires a proxy server, verify that the proxy settings are entered correctly in the Sangfor Firewall configuration.

3. Update the Sangfor Firewall firmware:

    Download the latest firmware update for your Sangfor Firewall model from the official Sangfor website.
    Follow the instructions in the user manual to update the firmware. Updating the firmware may resolve any software issues preventing the internet connection.

The error message "The current device cannot connect to the Internet and cannot obtain SP update" suggests that your Sangfor Firewall cannot connect to the internet for some reason, which is preventing it from downloading software patches and updates. Here are some things you can try to troubleshoot the issue:

1. Check your internet connection:

    Ensure your network cable is securely connected to the Sangfor Firewall and to the internet router or modem.
    Verify that the internet connection on the router or modem is working properly.
    Try connecting another device to the internet through the same router or modem to confirm it's not a general internet issue.

2. Verify the network settings on the Sangfor Firewall:

    Log in to the Sangfor Firewall web portal.
    Navigate to the network settings section.
    Check if the correct IP address, subnet mask, and gateway are configured for your network.
    Ensure the DNS server addresses are properly configured.
    If your network requires a proxy server, verify that the proxy settings are entered correctly in the Sangfor Firewall configuration.

3. Update the Sangfor Firewall firmware:

    Download the latest firmware update for your Sangfor Firewall model from the official Sangfor website.
    Follow the instructions in the user manual to update the firmware. Updating the firmware may resolve any software issues preventing the internet connection.