Home
Guardian Air
Learn how Guardian Air extends visibility and protection across the wireless spectrum in your operational network.
Troubleshooting
Troubleshooting procedures to help you solve problems that might occur when you use Guardian Air.
Failure to connect after NTP server configuration
Troubleshoot connectivity problems that occur after configuring a network time protocol (NTP) server on a Guardian Air device. Issues may be caused by incorrect file entries or network setup errors. This topic guides you through checking and correcting the configuration.

Guardian Air
Learn how Guardian Air extends visibility and protection across the wireless spectrum in your operational network.
- Introduction
  An overview of Guardian Air.
- Requirements
  The machine and network requirements necessary to use Guardian Air.
- Setup
  Information and resources on how to connect and install Guardian Air.
- Configuration
  Information on how to configure Guardian Air.
- Cleaning
  The correct cleaning procedure.
- Troubleshooting
  Troubleshooting procedures to help you solve problems that might occur when you use Guardian Air.
  - Status indicator shows fixed yellow
  - Status indicator shows flashing yellow
  - Failure to connect after HTTP proxy configuration
    Diagnose and resolve connection failures that occur after configuring a hypertext transfer protocol (HTTP) proxy on a Guardian Air device. Causes may include incorrect file entries or issues with the network configuration. Use this guide to identify and correct common setup problems.
  - Failure to connect after NTP server configuration
    Troubleshoot connectivity problems that occur after configuring a network time protocol (NTP) server on a Guardian Air device. Issues may be caused by incorrect file entries or network setup errors. This topic guides you through checking and correcting the configuration.
  - Failure to connect after static IP configuration
    Identify and fix connection issues that occur after assigning a static internet protocol (IP) address to a Guardian Air device. Problems may result from file errors or network misconfiguration. This topic provides steps to verify and correct the settings.
- Print format documentation
  A list of all the print-format documentation that is available for Guardian Air.

Failure to connect after NTP server configuration

Troubleshoot connectivity problems that occur after configuring a network time protocol (NTP) server on a Guardian Air device. Issues may be caused by incorrect file entries or network setup errors. This topic guides you through checking and correcting the configuration.

Your dynamic host configuration protocol (DHCP) server is not connected correctly.

Procedure

Check your DHCP server.

You did not write the configuration files correctly.

Procedure

Turn off the power to the Guardian Air.
Connect a universal serial bus (USB) pendrive to a desktop or laptop computer.
Read the timesyncd.conf file to make sure that it is correct.
If you found a mistake in the file, correct the mistake.
Do the Configure an NTP server procedure again.

If none of the previous solutions work, please contact our Customer Support team.