Troubleshooting Tip: Resolving the 'errno 142, error string - unauthorized test' Error in SD-WAN Network Monitoring Service

[edyrmishi]

Description	This article describes the error message encountered and the steps to resolve the issue.
Scope	FortiGate.
Solution	The SD-WAN Network Monitor Service, as outlined in the Fortinet Administration Guide, is a tool designed to determine upload and download speeds. Speed tests can be conducted either on-demand or according to a predetermined schedule, measuring upload and download speeds of up to 1 Gbps. Users may encounter the following error while attempting to run an interface speed test: errno 142, error string - unauthorized test This issue persists regardless of whether a specific server is selected, the server mode is set to auto, or particular interface options are specified. Executing the speed-test from the CLI: RTR_176 # execute speed-test auto FTNT_US_SanJose Speed test quota for 1/28 is 8 current vdom=root Run in uploading mode. Connecting to host 38.21.192.220, port 5200 Run uploading client error, return -1 errno 142, error string - unauthorized test Command fail. Return code -1 Executing the speed-test from the GUI: The error is caused by a time synchronization discrepancy between the FortiGate device and the speed-test server. The time difference between these two systems must not exceed 10 seconds. If the time discrepancy exceeds this limit, the server will not authorize the test. To resolve this issue: Navigate to System -> Settings -> System Time on the FortiGate device. If the Manual settings option is selected, ensure the date and time are accurate. As a best practice, to avoid manual discrepancies, configure time synchronization using an NTP server: Select Set Time -> NTP. Choose 'FortiGuard' as the NTP Server. Select Apply. Confirm NTP Synchronization via CLI and ensure that 'ntpsync' setting is enabled. Use the following command in the CLI: config system ntp     set ntpsync enable end Related documents: Technical Tip: Troubleshoot NTP synchronization issue