HTTP Error 502.3 - Bad Gateway

Hi,

I implemented ARR with using 3 servers. One server contains ARR with server farms, and each server contains a classic ASP application. I was set load balance algorithm as “Weightd round robin” and check the Server Affinity (check the client Affinity).

Following is the server setup

Server01              :               ARR with server farms and Classic ASP application

Server02              :               Classic ASP application

Server03              :               Classic ASP application

When I try to access my application via Server01 it works. This time it access application which is in Server03.

My problem is when I stop the IIS in Server03 it gives me an error called HTTP Error 502.3 - Bad Gateway.

My requirement is if IIS not responding ARR should automatically navigate to the other available server with all the sessions.
Do I able to achieve above requirement using IIS ARR?

Regards,

Namal