Smartsheet Status
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Investigating blank page or error on Smartsheet Login
Postmortem
On September 21, 2026, Smartsheet experienced intermittent login page loading issues across three regions between 11:42 AM and 3:30 PM PDT, impacting Australia from 11:42 AM to 12:34 PM PDT, Europe from 2:05 PM to 3:00 PM PDT, and the United States from 2:05 PM to 3:30 PM PDT. The issue was triggered during scheduled security maintenance on egress firewalls, where default load balancer routing maintained long-lived proxy connections to rebooting appliances rather than resetting and redirecting them immediately to healthy instances.
Consequently, approximately 12% to 20% of users attempting to load the login page during these regional windows experienced intermittent timeouts, while existing authenticated user sessions remained unaffected and no data integrity was compromised. Service fully recovered across all regions by 3:30 PM PDT as connections refreshed, and automated TCP connection-reset configurations are being enabled on load balancers to ensure seamless failover during any future appliance maintenance.