Starting radius validation server services on VIP Enterprise Gateway results in error 'Failed to start'

Products

• VIP Service

Issue/Introduction

Starting a radius validation server from the gateway user interface (UI) results in 'failed to start' or '<validation server> was not started'. 

The vipegconsole.log shows the error:  

ERROR "2019-02-18 01:15:01.674 GMT+0800" 172.21.2.204 vipegconsole 1965994315 2541f76cd7759030 18784  "actor="loggedinusername",text=Could not start server: "validationservername""

As a result of the service not starting, no logs are written to the validation server logs

To test, open a command prompt and navigate to <VIPEG_install_path>\Validation\bin\, then run the command:

vsauthstartserver.exe -ValidationServerName "NameofValidationServer"

This will result in the System Error:  The program can't start because MSVCR100.dll is missing from your computer.  Try reinstalling the program to fix this problem. Or, The code execution cannot proceed because MSVCR100.dll was not found.

Cause

A prerequisite of VIP EGW is Microsoft Visual C++. If this is missing or corrupt, the VIP EG validation services, IdP services, and other VIP EG tools and components will not function properly. 

Resolution

 

• Stop all VIP EG services.  
• VIP Enterprise Gateway 9.9.x and older: Download and install Microsoft Visual C++ 2010 Redistributable Package (x86) from Microsoft at the Microsoft Download Center (note: this is an external link).
• VIP Enterprise Gateway 10.0.x and later: Download and install Microsoft Visual C++ 2015-2022 Redistributable (x64) from Microsoft at the Microsoft Download Center (note: this is an external link).
• Start the VIP Services.