Fat Zebra incident
91 - Host or Switch Unavailable errors affecting CBA merchants
Major Vendor's status page →
Resolved after 34 minutes, affecting Gateway: Commonwealth Bank, on September 1, 2026.
Transactions for CBA merchants are now processing successfully. We will continue to monitor during the evening for any further problems.
Affected components
Gateway: Commonwealth Bank
Update timeline
- investigating Sep 01, 2026, 10:18 AM UTC
We are currently investigating a problem with CBA merchants receiving '91 - Host or Switch Unavailable' responses for all transactions.
- monitoring Sep 01, 2026, 10:32 AM UTC
Transactions for CBA merchants are now processing successfully. We will continue to monitor during the evening for any further problems.
- resolved Sep 01, 2026, 10:52 AM UTC
This incident has been resolved.
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