How to configure NTP Server with Windows Server

If you are a network administrator, you may face the situation of configuring an NTP server to synchronize time. There are many ways to configure an NTP server. Windows Server or NAS or even switch can be used as NTP server. In this post I will show how to configure NTP Server with Windows Server.

1. Use the Registry Editor to modify the following values.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config\AnnounceFlags

2. Restart Windows Time Service

3. Verification

I used a WLC as a client to verify time synchronization.

(5508-1) >config time ntp server 1 10.106.60.214


(5508-1) >show time 

Time............................................. Sat Oct 19 11:13:27 2019

Timezone delta................................... 0:0
Timezone location................................ 

NTP Servers
    NTP Version..................................     3
    NTP Polling Interval.........................     600

     Index     NTP Key Index                  NTP Server                Status          NTP Msg Auth Status
    -------  ---------------------------------------------------------------------
       1              0                               10.106.60.214     In Sync              AUTH DISABLED


(5508-1) >

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