2.Navigate to System > Time.
3.Under NTP Server, select No.
4.Set the Date, Time, and Time Zone.
5.Click Apply.
In addition, if the M3800 is able to access the Internet and you want to keep the NTP Server clock.isc.org by default, please make sure the DNS Server is correctly entered, thereby allowing the NTP Server name to correctly resolve. (See Network > WAN > DNS Server)
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