Error 0xC00D2EF6

Value: -1072877834 | 0xC00D2EF6 | 3222089462

What does it mean ?

NS_E_PROXY_ACCESSDENIED  
The proxy server is denying access. The username and/or password might be incorrect.
Value: 12022 | 0x2EF6 | 0b0010111011110110

Where does it come from ?

FACILITY_MEDIASERVER  
Windows Media Server
Value: 13 | 0x00D | 0b00001101

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