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Storage Sync requires the system clock to be synchronized with the Domain Controller's clock (DC) if users are authenticated to the share using their Active Directory credentials. The internal clock for Storage Sync must be set to within 5 minutes of the DC clock. If the clocks are not synchronized, the Kerberos authentication will fail.
Users may also receive the error below which occurs when a drive tries to re-connect to the Storage Sync share.
"The server's clock is not synchronized with the primary domain controller"
Manually re-sync the clocks
Manually re-syncing the clock can be invoked by running the command below within your Storage Sync VM.
net time set -S ipaddress (Replace ipaddress with the Domain Controller IP)
Configuring NTP to sync the clocks automatically
The steps below will allow the Storage Sync clock to always be in sync with an NTP server and the time difference will be adjusted slowly.
- Make a backup of the /etc/ntp.conf file.
cp /etc/ntp.conf /etc/ntp.conf.orig
- Open ntp.conf file using VI and comment predefined ntpservers using # as prefix.
- Add the desired NTP server address, typically your DC.
- Add another line similar to the one above if you have multiple NTP servers or wish to use public ones.
- Come out of the VI editor and Stop the NTP services.
- Sync the ELC time with NTP server.
- Start the NTP daemon.
To run at boot up, turn on server chkconfig ntpd on
Note: If the time is not in sync, then stop the NTP service again, run ntpdate NTP.SERVER.ADDRESS and then start the NTP service.