RD Gateway issues with SBS

Fix SSL bindings:

REG ADD HKLM\SYSTEM\CurrentControlSet\services\HTTP\Parameters\SslBindingInfo\0.0.0.0:443  /v DefaultFlags /t REG_DWORD /d 1 /f
net stop tsgateway & net start tsgateway

https://support.microsoft.com/en-us/kb/2472211