5.1.9 Troubleshooting – Network PCs Cannot Sync
In order for clients on the network to be able to sync to SecureSync, several
requirements must be met:
1. The PC(s) must be routable to SecureSync. Make sure you can access
SecureSync Web UI from a PC that is not syncing. If the PC cannot access
the Web UI, a network issue likely exists. Verify the network configuration.
2. The network clients have to be configured to synchronize to SecureSync's
address. For additional information on syncing Windows PC's, see
https://safran-navigation-timing.com/document/synchronizing-windows-
computers/. The last section of this document also contains troubleshoot-
ing assistance for Windows synchronization. For UNIX/Linux computer syn-
chronization, please visit http://www.ntp.org/.
3. If at least one PC can sync to SecureSync, the issue is likely not with
SecureSync itself. The only SecureSync configurations that can prevent cer-
tain PCs from syncing to the time server are the NTP Access table and MD5
authentication. See "Configuring NTP Symmetric Keys" on page130. A net-
work or PC issue likely exists. A firewall may be blocking Port 123 (NTP
traffic), for example.
4. NTP in SecureSync must be “in sync” and at a higher Stratum level than
Stratum15 (such as Stratum1 or2, for example). This requires SecureSync
to be either synced to its input references or in Holdover mode. Verify the
current NTP stratum level and the sync status.
5.1.10 Troubleshooting Software Update
When experiencing slow data transmission rates, or other network issues, it may
be possible that a system software update will be aborted due to a web server
timeout during the transfer.
In such an event, the Upload New File window will disappear, and the Upgrade
System Software window will be displayed again instead.
Should this happen repeatedly, you can transfer the update file using a file
transfer protocol such as scp, sftp or ftp, if security is not a concern. The
update can then be initiated from the Web UI or Command Line.
Disk Status: In the event of an aborted update process, under Tools >
Upgrade/Backup > Disk Status, check Percent Used: If the number is
360 SecureSync 2400 User Manual
APPENDIX
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