Android客户端+WIFI访问某站点，一个纠结且无解的问题 Connection timed out

纠结原因在于：

1 iPhone客户端(ASIHttpRequest)连接，没有问题；

2 Android客户端通过GPRS/3G/CMCC:WIFI 连接，没有问题；

3 公司网络PC访问kdweibo.com ，没有问题；

4 新浪微博客户端刷微博，没有问题；

5 Android客户端，通过公司网络分享出的每一个wifi连接，都间歇性的出现连接超时。

什么参数都试过了，无效，真操蛋。

org.apache.commons.httpclient.ConnectTimeoutException: The host did not accept the connection within timeout of 20000 ms

at org.apache.commons.httpclient.protocol.ReflectionSocketFactory.createSocket(ReflectionSocketFactory.java:155)

at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:125)

at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)

at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)

at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)

at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)

at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)

at weibo4andriod.http.HttpClient.multPartURL(HttpClient.java:523)

at weibo4andriod.Weibo.uploadStatus(Weibo.java:1865)

at com.kdweibo.activities.ACT_StatusNew$11.run(ACT_StatusNew.java:511)

at java.lang.Thread.run(Thread.java:1019)

Caused by: java.net.SocketTimeoutException: Connection timed out

at org.apache.harmony.luni.platform.OSNetworkSystem.connect(Native Method)

at dalvik.system.BlockGuard$WrappedNetworkSystem.connect(BlockGuard.java:357)

at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:204)

at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:437)

at java.net.Socket.connect(Socket.java:983)

at java.lang.reflect.Method.invokeNative(Native Method)

at java.lang.reflect.Method.invoke(Method.java:507)

at org.apache.commons.httpclient.protocol.ReflectionSocketFactory.createSocket(ReflectionSocketFactory.java:140)