# 2.3 – Radius ``` { "source": { "type": "RADIUS", "properties": { "server": "192.168.12.128", "port": "1812", "accountingPort": "1813", "sharedSecret": "test123" "timeout": "60000", "retryCount": "3" } } } ``` - Make sure the IP of Spark Gateway is listed as a client on RADIUS server. - Make sure the timeout is at least 60000 milliseconds if your RADIUS server is using multi factor authentication, like Azure MFA.