客户端调用webservice时出现：System.Net.WebException:HTTP 状态 504

[fmddut]

这是怎么回事？
以前一直好用，突然就不好用了，然后就出现这个错误：
System.Net.WebException: 要求失败，HTTP 状态 504 : Proxy Timeout ( Connection timed out. For more information about this event, see ISA Server Help. )。

[fmddut]

504错误是The request was timed out waiting for a gateway。怎么回事？

[saucer]

"..............
HTTP Error Code 504
The message for this error code is "Gateway Timeout."

The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the URI (e.g. HTTP, FTP, LDAP) or some other auxiliary server (e.g. DNS) it needed to access in attempting to complete the request.
.............."

it should not be your program's problem, must be network or network settings problem, go to IE menu Tools->Internet Options->Connection->LAN Settings, try to clear "Automatically detect settings", or ask your network administrator

[fmddut]

这个问题真的很奇怪，可是以前都好用呀，今天突然就不好用了

[panyee]

Proxy Timeout

访问web service还得用代理访问吗?

[richielou]

The problem is most likly a network issue raised up from WebService hosted Server. Please just visit and test your service via IE browser.