ateSettings.impl.UpdateChecker - Connection failed (Permission denied: connect)

version : IDEA Community - 3.1 (I just updated a few hours ago)

OS : win7

I could not update plugins or check for updates, when i check for updates ,  "connection failed ( Permission denied: connect)" , but the old version works well

my proxy works well too, i can visit jetbrains website normally.

the following is idea log ：

INFO - ateSettings.impl.UpdateChecker - Connection failed (Permission denied: connect). Please check network connection and try again.
INFO - .ide.plugins.PluginManagerMain - Permission denied: connect
java.net.SocketException: Permission denied: connect
at java.net.TwoStacksPlainSocketImpl.socketConnect(Native Method)
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.Socket.connect(Socket.java:589)
at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient$1.run(HttpClient.java:484)
at sun.net.www.http.HttpClient$1.run(HttpClient.java:482)
at java.security.AccessController.doPrivileged(Native Method)
at sun.net.www.http.HttpClient.privilegedOpenServer(HttpClient.java:481)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:522)
at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1181)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1546)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)
at com.intellij.util.io.HttpRequests.openConnection(HttpRequests.java:609)
at com.intellij.util.io.HttpRequests.access$300(HttpRequests.java:59)
at com.intellij.util.io.HttpRequests$RequestImpl.getConnection(HttpRequests.java:378)
at com.intellij.ide.plugins.RepositoryHelper.lambda$loadPlugins$1(RepositoryHelper.java:134)
at com.intellij.util.io.HttpRequests.doProcess(HttpRequests.java:523)
at com.intellij.util.io.HttpRequests.process(HttpRequests.java:499)
at com.intellij.util.io.HttpRequests.access$100(HttpRequests.java:59)
at com.intellij.util.io.HttpRequests$RequestBuilderImpl.connect(HttpRequests.java:352)
at com.intellij.ide.plugins.RepositoryHelper.loadPlugins(RepositoryHelper.java:129)
at com.intellij.ide.plugins.RepositoryHelper.loadPlugins(RepositoryHelper.java:93)
at com.intellij.ide.plugins.RepositoryHelper.loadPlugins(RepositoryHelper.java:84)
at com.intellij.ide.plugins.PluginManagerConfigurableNew.loadPluginRepositories(PluginManagerConfigurableNew.java:1277)
at com.intellij.ide.plugins.PluginManagerConfigurableNew.lambda$createTrendingPanel$14(PluginManagerConfigurableNew.java:696)
at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:314)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

How can i solve this problem?