Article - CS292020
Using connected mode for ThingWorx returns error "Unable to retrieve license from FNO server because Read timed out"
Modified: 03-Dec-2025
Applies To
- ThingWorx Platform 8.1 to 9.5
Description
- Valid credentials are configured in /ThingworxPlatform/platform-settings.json file for logging on to the support portal for retrieving the license automatically but license file fails to update
- Trying to use connected mode to get license, but the following errors appear in /ThingworxStorage/logs/ApplicationLog.log:
YYYY-MM-DD hh:mm:ss.742+0000 [L: INFO] [O: c.t.s.s.Subsystem] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Starting Subsystem [LicensingSubsystem]
YYYY-MM-DD hh:mm:ss.293+0000 [L: ERROR] [O: c.t.s.s.l.LicensingStateMachine] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Unable to retrieve license from FNO server because Read timed out
YYYY-MM-DD hh:mm:ss.308+0000 [L: ERROR] [O: c.t.s.s.l.LicensingStateMachine] [I: ] [U: SuperUser] [S: ] [T: localhost-startStop-1] Unable to connect to the PTC license server. Please make sure the LicensingConnectionSettings settings in the platform-settings.json in the ThingworxPlatform directory are correct. If your server is not connected to the internet please use the request file licenseRequestFile.txt created in the ThingworxPlatform directory to do a manual install of the license- Some ThingWorx instances are logging this error in \ThingworxStorage\logs\ApplicationLog.log:
[L: WARN] [O: c.t.s.s.l.LicensingStateMachine] [I: ] [U: SuperUser] [S: ] [P: ] [T: main] Server device/instance ID is <device_id>.
[L: ERROR] [O: c.t.s.s.l.LicensingStateMachine] [I: ] [U: SuperUser] [S: ] [P: ] [T: main] Unable to retrieve license from FNO server because sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
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