RADIUS logs are showing the error: 

ERROR - Failed to get radius apps from Okta
com.okta.ragent.exception.OktaRadiusException: Connection reset
 

• Multi-Factor Authentication (MFA)
• Okta RADIUS

• The API Token has expired.
• The token generated for the agent to connect to their Okta org has expired.

To solve this error, perform a fresh install of the Okta RADIUS Agent/Reconnect to generate a new one.

To do a fresh Install: 

1. Download the latest version of the RADIUS app via Settings > Downloads.
2. Uninstall the current RADIUS agent on the server. 
3. Rename or delete the RADIUS directory C:\Program Files (x86)\Okta\Okta RADIUS Agent
4. Run the RADIUS Setup file.
   • When prompted to sign into Okta, please sign in with an admin account that either has both Read-only Admin and App admin roles or has the Super admin role.

Related References

• Meaning of the "Revoke API token" Events Registered in System Logs