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Web Sockets
Windows 2008 servers by default has dynamic port ranges of 49152 - 65536 (16384) ports for TCP & UDP. To verify this, run these commands:
- netsh int ipv4 show dynamicport tcp
- netsh int ipv4 show dynamicport udp
To extend the range:
- netsh int ipv4 set dynamicportrange tcp start=32767 num=32768
- netsh int ipv4 set dynamicportrange udp start=32767 num=32768
These commands will set the range to 32767 - 65535 (32768 ports - doubling the range). If you have more questions, review the following link:
https://support.microsoft.com/en-us/kb/929851