Could not connect to the updateserver

Help
1

Hi,
I started using JabRef at but it seems that it doesn’t work appropriately since it doesn’t connect to the updateserver and of course not to the network at all (using DOI or ISBN to bibtex).
ANy idea how to solve this problem?

14:52:45.670 [AWT-EventQueue-0] INFO net.sf.jabref.logic.importer.OpenDatabase - Opening: N:\Mitarbeiter\tzim\Literatur\Literaturrecherche_Deflektometrie.bib
14:52:48.423 [SwingWorker-pool-4-thread-1] WARN net.sf.jabref.gui.worker.VersionWorker - Could not connect to the updateserver.
java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method) ~[?:1.8.0_121]
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source) ~[?:1.8.0_121]
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source) ~[?:1.8.0_121]
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source) ~[?:1.8.0_121]
at java.net.AbstractPlainSocketImpl.connect(Unknown Source) ~[?:1.8.0_121]
at java.net.PlainSocketImpl.connect(Unknown Source) ~[?:1.8.0_121]
at java.net.SocksSocketImpl.connect(Unknown Source) ~[?:1.8.0_121]
at java.net.Socket.connect(Unknown Source) ~[?:1.8.0_121]
at sun.security.ssl.SSLSocketImpl.connect(Unknown Source) ~[?:1.8.0_121]
at sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source) ~[?:1.8.0_121]
at sun.net.NetworkClient.doConnect(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.http.HttpClient.openServer(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.http.HttpClient.openServer(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.protocol.https.HttpsClient.(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.protocol.https.HttpsClient.New(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source) ~[?:1.8.0_121]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source) ~[?:1.8.0_121]
at net.sf.jabref.logic.util.Version.getAllAvailableVersions(Version.java:93) ~[JabRef-3.8.1.jar:?]
at net.sf.jabref.gui.worker.VersionWorker.doInBackground(VersionWorker.java:55) [JabRef-3.8.1.jar:?]
at net.sf.jabref.gui.worker.VersionWorker.doInBackground(VersionWorker.java:29) [JabRef-3.8.1.jar:?]
at javax.swing.SwingWorker$1.call(Unknown Source) [?:1.8.0_121]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_121]
at javax.swing.SwingWorker.run(Unknown Source) [?:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.8.0_121]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_121]

2

P.S.: As I have no admin rights I can’t use custom proxy configuration since I don’t know them.

3

My guess is that your firewall is blocking JabRef, or maybe even Java, from access to the network. In this case, there is not much that can be done from JabRef’s side. If you do not manage your computer yourself, I would recommend you to ask your administrator to give the appropriate permissions to JabRef and Java.

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