java.net.SocketTimeoutException: connect timed out
	at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.net.Socket.connect(Socket.java:589)
	at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
	at sun.net.www.http.HttpClient.New(HttpClient.java:339)
	at sun.net.www.http.HttpClient.New(HttpClient.java:357)
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1226)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1162)
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1056)
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:990)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1570)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
	at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:3057)
	at java.net.URLConnection.getHeaderFieldLong(URLConnection.java:629)
	at java.net.URLConnection.getContentLengthLong(URLConnection.java:501)
	at java.net.URLConnection.getContentLength(URLConnection.java:485)
	at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:1194)
Caused: java.net.SocketTimeoutException: connect timed out
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1950)
	at sun.net.www.protocol.http.HttpURLConnection$10.run(HttpURLConnection.java:1945)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1944)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1514)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1498)
	at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:1210)
Caused: java.io.IOException: Failed to load http://updates.jenkins-ci.org/download/plugins/blueocean-core-js/1.21.0/blueocean-core-js.hpi to C:\Users\my-username\.jenkins\plugins\blueocean-core-js.jpi.tmp
	at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:1217)
Caused: java.io.IOException: Failed to download from http://updates.jenkins-ci.org/download/plugins/blueocean-core-js/1.21.0/blueocean-core-js.hpi
	at hudson.model.UpdateCenter$UpdateCenterConfiguration.download(UpdateCenter.java:1251)
	at hudson.model.UpdateCenter$DownloadJob._run(UpdateCenter.java:1799)
	at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:2070)
	at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:1773)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at hudson.remoting.AtmostOneThreadExecutor$Worker.run(AtmostOneThreadExecutor.java:111)
	at java.lang.Thread.run(Thread.java:748)