If you are unable to access the web interface and cannot ping any of the ports on your NGAF 4500, there are a few things you can try:

1-Verify the IP address: Double-check the IP address you found during the IP scan to ensure that it is the correct IP address for your NGAF 4500. Sometimes, IP addresses can be mistakenly identified or changed.

2-Check network configuration: Ensure that the network configuration of your NGAF 4500 is correctly set up, including its subnet mask and default gateway. You can check this information by connecting to the console port of the NGAF 4500.

3-Check connectivity: Verify that your network is functioning correctly and that your NGAF 4500 is properly connected to your network. Check for any network outages or connectivity issues that may be preventing you from accessing the device.

4-Reboot the device: Try rebooting the NGAF 4500 to see if that resolves the issue. Sometimes, a reboot can clear any connectivity issues or configuration problems.

5-Reset the device: As a last resort, you may need to reset the device to its factory defaults. This will erase all configurations and settings on the device, so be sure to back up any important data before resetting. You can reset the device using the reset button or through the console port.

If none of these steps resolves the issue, it may be best to contact the manufacturer or a professional IT service provider for further assistance.

If you are unable to access the web interface and cannot ping any of the ports on your NGAF 4500, there are a few things you can try:

1-Verify the IP address: Double-check the IP address you found during the IP scan to ensure that it is the correct IP address for your NGAF 4500. Sometimes, IP addresses can be mistakenly identified or changed.

2-Check network configuration: Ensure that the network configuration of your NGAF 4500 is correctly set up, including its subnet mask and default gateway. You can check this information by connecting to the console port of the NGAF 4500.

3-Check connectivity: Verify that your network is functioning correctly and that your NGAF 4500 is properly connected to your network. Check for any network outages or connectivity issues that may be preventing you from accessing the device.

4-Reboot the device: Try rebooting the NGAF 4500 to see if that resolves the issue. Sometimes, a reboot can clear any connectivity issues or configuration problems.

5-Reset the device: As a last resort, you may need to reset the device to its factory defaults. This will erase all configurations and settings on the device, so be sure to back up any important data before resetting. You can reset the device using the reset button or through the console port.

If none of these steps resolves the issue, it may be best to contact the manufacturer or a professional IT service provider for further assistance.