我正在尝试添加多个SCM插件，并收到以下连接超时错误。我正在运行2.0版。没有代理设置。
有没有办法获取插件并手动安装？谢谢。
hudson.util.IOException2: Failed to download from http://updates.jenkins-ci.org/download/plugins/multiple-scms/0.6/multiple-scms.hpi (redirected to: http://mirrors.jenkins-ci.org/plugins/multiple-scms/0.6/multiple-scms.hpi)
at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:1153)
at hudson.model.UpdateCenter$DownloadJob._run(UpdateCenter.java:1650)
at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1848)
at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:1624)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at hudson.remoting.AtmostOneThreadExecutor$Worker.run(AtmostOneThreadExecutor.java:110)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketTimeoutException: connect timed out
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$10.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.protocol.http.HttpURLConnection.getChainedException(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:1105)
... 7 more
Caused by: java.net.SocketTimeoutException: connect timed out
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) …jenkins ×1