WSUS Crashes

 Make the following "Advanced Settings" for WSUS Application Pool in IIS:
    - Queue Length: 25000 from 1000
    - Limit Interval (minutes): 15 from 5
    - "Service Unavailable" Response: TcpLevel from HttpLevel
* (Stop IIS first) Edit the web.config ( C:\Program Files\Update Services\WebServices\ClientWebService\web.config ) for WSUS:
    - Replace <httpRuntime maxRequestLength="4096" /> with <httpRuntime maxRequestLength="204800" executionTimeout="7200"/>
* Adjust the private memory limit.
    - If you have WSUS Automated Maintenance (WAM), from the WAM Shell run:
        .\Clean-WSUS.ps1 -SetApplicationPoolMemory 4096
    - If you don't have WAM, edit the pool's configuration directly to change it to 4194304 (4GB)