AWS (Amazon Web Services) outage was resolved October 20, 2025 at 3:53 PM PDT. StrataSync services experienced minimal intermittent issues during the AWS outage. All StrataSync services have been verified to be fully restored.

Overview:
VIAVI is aware that AWS (Amazon Web Services) is experiencing a major outage today (Monday, October 20, 2025). This is impacting StrataSync Services intermittently.

Current Status:
The following services have been reported to be experiencing issues.

• {StrataSync web user interface}
• {StrataSync APIs/external interfaces}

Please note that additional cloud hosted services may be impacted in addition to what is listed here.

Next Steps:
VIAVI is monitoring the situation and will provide updates as we receive them. The restoration of all services is dependent on the resolution of the AWS service outage. Additional information can be found on AWS health dashboard

Thank you for your patience and understanding.

Please be advised that StrataSync will be undergoing planned database server maintenance on Friday, 28th February 2025, starting 10:00PM EST until 12:00PM EST (UTC-5) on Sunday, 2nd March 2025, for US Server hosted accounts.
There is no downtime anticipated and all services should operate as normal.

If you experience any issues, please contact us at:
• (US Server) tac@viavisolutions.com or +1 844 468 4284

Please be advised that StrataSync services will be unavailable Saturday, December 28th, from 00:01 until 6:00 AM EST (UTC-5) for US Server hosted accounts, and from 0001 until 0600 CET (UTC +1) for accounts on the EU (Germany) Server.

NOTE: Please clear your internet browser cache (‘browsing history’ and ‘cached images and files’), prior to logging in to the StrataSync web UI after a new release.

The following web functions, reports, and Instrument synchronization will be unavailable during this maintenance window:

• {VIAVI test instrument synchronization with StrataSync/CERTiFi}
• {StrataSync and CERTiFi web user interface}
• {StrataSync APIs/external interfaces}
• {StrataSync scheduled and notification emails, including saved views and reports}
• {StrataSync Reports}
• {StrataSync Analytics dashboards}
• {StrataSync data exchange links}

During this period StrataSync will be upgraded to release version 17.1 for bug fix.

Please be advised that StrataSync services will be unavailable Saturday, September 14th, from 00:01 until 6:00 AM EDT (UTC-4) for US Server hosted accounts, and from 0001 until 0600 CEST (UTC +2) for accounts on the EU (Germany) Server.

The following web functions, reports, and Instrument synchronization will be unavailable during this maintenance window.

• {VIAVI test instrument synchronization with StrataSync/CERTiFi}
• {StrataSync and CERTiFi web user interface}
• {StrataSync APIs/external interfaces}
• {StrataSync scheduled and notification emails, including saved views and reports}
• {StrataSync Reports}
• {StrataSync Analytics dashboards}
• {StrataSync data exchange links}

During this period StrataSync will be upgraded to release version 16.7 for database upgrade and AWS configuration updates.
StrataSync 16.7 does not contain any new functionality, features or bug fixes.

Please be advised that StrataSync will be undergoing planned Database server maintenance on Friday, August 2nd, 2024, starting 11:00PM EDT (UTC-4) over 48 hours for US Server hosted accounts. There is no downtime anticipated and all services should operate as normal.

If you experience any issues, please contact us at:
• (US Server) tac@viavisolutions.com or +1 844 468 4284