Error connecting NTP -NTP configuration failed

[3.23 and below]

Verify that the server is responding in a timely manner with the following tests:

           Perform a test connection via ping to the device with NTP, and verify that it responds.

           Use nmap to list the connection ports and check if the NTP one is open.

After verifying that the server is not responding in the proper time, use the command below to correct the problem:

echo "server <IP> iburst" >> /etc/ntp.conf
systemctl restart ntp