Remote Desktop Gateway Optimization (Preliminary)

Remote Desktop Gateway Optimizations: 

• RDG requirement is to use IIS, it also uses for Application Pools, and are inter-related.

• As a result of inter-related application pools, the IIS App Pool Recycling is turned on.  To keep RDG in memory, disable App Pool Recycling.

  • https://docs.microsoft.com/en-us/iis/configuration/system.applicationhost/applicationpools/add/recycling/periodicrestart/

• Optional Network Optimizations:

  • If using VMWare, use VMXNET3 (Do not use E1000 and E1000E)

  • Disable IPv6, QoS, and anything that has to do with packet shaping.

  • If VMQ is enabled on the VMW Host/Guest, disable it.

  • Increase the Maximum Input and Output threads to allow for multiple TCP threads inbound.

    • HKLM\Software\Microsoft\Terminal Server Gateway\Maxiothreads (REG_DWORD) = 5

  • Increase those IIS Pool Threads: 

    • HKLM\System\CurrentControlSet\Services\InetInfo\Parameters\MaxPoolThreads (REG_DWORD) = 4

    • HKLM\Software\Microsoft\Rpc\ServerReceiveWindow (REG_DWORD) = 64kb

      • Adjust as need with a maximum of 1GB.

  • Disable TCP Offloading on the NIC: https://support.rackspace.com/how-to/disabling-tcp-offloading-in-windows-server-2012/