Error message in the Validation Server logs when attempting to start the Validation Server:
ERROR "2021-03-10 13:09:50.378 GMT-0600" 0.0.0.0 demoadds01-radius:1812 0 0 "text=Provider [VSAuthWebServiceClient] GetWSSDKInstance: Get new Instance failed with error code 18501(Properties File Location is not specified or invalid. (null))" Thread-6500 vsauthwsclientimpl.cpp
VIP Enterprise Gateway
Stop the VIP Enterprise Gateway Healthcheck Service and adjust the timeout value with an additional 1 second. Save the settings and turn the health check service on.