Description |
This article describes an issue observed after upgrading FortiGate to v7.6.1, where the SD-WAN Performance SLA 'Default_DNS' incorrectly shows 'All Participants of Default_DNS Are Down.' |
Scope |
FortiGate v7.6.1 |
Solution |
After upgrading the FortiGate to v7.6.1, the 'Default_DNS' Performance SLA displays the message 'All Participants of Default_DNS Are Down.'
SLA details do not show any statistics.
Debugging the link monitor reveals that no probes are being sent from the FortiGate. Despite this, the associated routes remain present in the active routing table.
This issue has been resolved in v7.6.3 (scheduled to be released in March 2025). These timelines for firmware release are estimates and may be subject to change.
General debug information required by FortiGate TAC for investigation:
diagnose sys sdwan health-check diagnose sys sdwan sla-log Default_DNS 1 diagnose sys sdwan sla-log Default_DNS 2 diagnose debug application link-monitor -1 diagnose debug enable <wait for 30 seconds> diagnose debug disable
execute tac report
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