metric Keys" on page112. A network or PC issue likely exists. A firewall may be block
ing 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.
5.1.13 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 Soft
ware window will be displayed again instead.
Should this happen repeatedly, you can transfer the update file using a file transfer pro
tocol 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 greater than 70%, free up disk
space, before starting another attempt to update the System Software.
Software Versions older than 5.3.0:
Note that failed update attempts may result in lost Disk Space on the SecureSync. Reboot the
system to erase unwanted update files.
Software Version 5.3.0 and higher:
In the event that an update process becomes aborted, clicking Update System Software will
automatically erase unwanted update files.
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APPENDIX
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