Configuring IIS for the Relay Server Load Balanced Environment

Configure the IIS server that hosts relay server to work with Application Request Routing (ARR).

Disable these two IIS features to support ARR:
  • Idle time-outs – Because all HTTP requests go through ARR, the worker process for the Default Web Site must always be running. You can configure the worker process to always run by disabling the Idle Time-Out setting in the application pool process model for the relay server.
  • Application pool recycling – Prevent an application pool from recycling unexpectedly.
  1. Open IIS management console.
  2. In the Connections pane, select Application Pools then choose DefaultAppPool.
  3. Click Actions, then Advanced Settings.
  4. Change the Idle Time-out (minutes) value to 0.
  5. Click Actions, then Recycling.
  6. Uncheck Regular time intervals (in minutes).
Parent topic: Configuring the Relay Server IIS Host for Load Balancing