Network Protection appliances use ntp.bluecoat.com, ntp1.bluecoat.com, and ntp2.bluecoat.com as pre-configured NTP servers.
On May 28th, 2020, the NTP service was changed to use Google time servers.
The CNAME to ntp.bluecoat.com, ntp1.bluecoat.com, ntp2.bluecoat.com is now pointing to time.google.com.
|Service Name||Old IP address||New IP addresses|
If you are using this NTP service you should verify that firewall is allowing traffic to IP addresses above, UDP port 123.