Outbound Remote Desktop Connections fail when Client DPI-SSL is enabled

When DPI-SSL Client Inspection is enabled, outbound Remote Desktop Connections (RDP) fail. This KB article describes how to workaround this issue.

1. Login to the SonicWall management interface.
2. Open the SonicWall UTM diag page (not the Diagnostics page under System) by entering https://<SonicWall.management.ip.address>/diag.html in a web browser.
3. Go to the DPI-SSL Settings section.
4. Change Max stream offset to check for SSL client-hello resemblance from 512 to 32.
5. Click on Accept at the top to save the change.