错误代码查寻
0x80072ee2 The operation timed out 
0x80072ee4 internal error 
0x80072ee5 The URL is invalid 
0x80072ee7 The server name or address could not be resolved 
0x80072eee incorrect password 
0x80072eef authentication failure (credentials not accepted) 
0x80072efd A connection with the server could not be established 
0x80072efe connection aborted 
0x80072eff connection reset 
0x80072f05 The date in the certificate is invalid or has expired 
0x80072f06 The host name in the certificate is invalid or does not match 
0x80072f07 A redirect request will change a non-secure to a secure connection 
0x80072f08 A redirect request will change a secure to a non-secure connection 
0x80072f0c A certificate is required to complete client authentication 
0x80072f0d The certificate authority is invalid or incorrect 
0x80072f0e Client authentication has not been correctly installed 
0x80072f76 The requested header was not found 
0x80072f78 The server returned an invalid or unrecognized response 
0x80072f7a The request for a HTTP header is invalid 
0x80072f7c The HTTP redirect request failed 
0x80072f7d An error occurred in the secure channel support 
0x80072f80 The HTTP request was not redirected 
0x80072f82 A cookie from the server has been declined acceptance 
0x80072f88 The HTTP redirect request must be confirmed by the user 
5460 concurrent objects per process)