launcher not connecting

[Test Dummy]

Launcher Version: 383

Operating System: windows 7

Java Version: version 7 updated 45

Antivirus Program: avast

Description of Problem:

launcher is not connecting even after disabling firewall and antivirus program

Error Messages:

Address family not supported by protocol family: connect

Error Log:

2014/01/26 00:18:29 [iNFO] ------------------------------------------

2014/01/26 00:18:29 [iNFO] Technic Launcher is starting....

2014/01/26 00:18:29 [iNFO] Launcher Build: 383

2014/01/26 00:18:29 [iNFO] ------------ Startup Parameters ------------

2014/01/26 00:18:29 [iNFO] --------- End of Startup Parameters ---------

2014/01/26 00:18:29 [WARNING] Unable to load users from C:UserssAMAppDataRoaming.technicusers.json because it does not exist.

2014/01/26 00:18:29 [WARNING] Unable to load installedPacks from C:UserssAMAppDataRoaming.technicinstalledPacks because it does not exist.

2014/01/26 00:18:30 [WARNING] Unable to load technic modpacks

net.technicpack.launchercore.exception.RestfulAPIException: Error accessing URL [http://solder.technicpack.net/api/modpack/?include=full&cid=262dcc30-de01-46cd-b31c-167795f7b6d8]

	at net.technicpack.launchercore.restful.RestObject.getRestObject(RestObject.java:76)

	at org.spoutcraft.launcher.Launcher$5.run(Launcher.java:195)

Caused by: java.net.SocketException: Address family not supported by protocol family: connect

	at java.net.DualStackPlainSocketImpl.connect0(Native Method)

	at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)

	at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)

	at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)

	at java.net.AbstractPlainSocketImpl.connect(Unknown Source)

	at java.net.PlainSocketImpl.connect(Unknown Source)

	at java.net.SocksSocketImpl.connect(Unknown Source)

	at java.net.Socket.connect(Unknown Source)

	at sun.net.NetworkClient.doConnect(Unknown Source)

	at sun.net.www.http.HttpClient.openServer(Unknown Source)

	at sun.net.www.http.HttpClient.openServer(Unknown Source)

	at sun.net.www.http.HttpClient.<init>(Unknown Source)

	at sun.net.www.http.HttpClient.New(Unknown Source)

	at sun.net.www.http.HttpClient.New(Unknown Source)

	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)

	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)

	at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)

	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)

	at net.technicpack.launchercore.restful.RestObject.getRestObject(RestObject.java:56)

	... 1 more

2014/01/26 00:18:30 [WARNING] Unable to load news, hiding news section

net.technicpack.launchercore.exception.RestfulAPIException: Error accessing URL [http://www.technicpack.net/api/news/]

	at net.technicpack.launchercore.restful.RestObject.getRestObject(RestObject.java:76)

	at org.spoutcraft.launcher.skin.NewsComponent.loadArticles(NewsComponent.java:45)

	at org.spoutcraft.launcher.Launcher$1.run(Launcher.java:89)

Caused by: java.net.SocketException: Address family not supported by protocol family: connect

	at java.net.DualStackPlainSocketImpl.connect0(Native Method)

	at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)

	at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)

	at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)

	at java.net.AbstractPlainSocketImpl.connect(Unknown Source)

	at java.net.PlainSocketImpl.connect(Unknown Source)

	at java.net.SocksSocketImpl.connect(Unknown Source)

	at java.net.Socket.connect(Unknown Source)

	at sun.net.NetworkClient.doConnect(Unknown Source)

	at sun.net.www.http.HttpClient.openServer(Unknown Source)

	at sun.net.www.http.HttpClient.openServer(Unknown Source)

	at sun.net.www.http.HttpClient.<init>(Unknown Source)

	at sun.net.www.http.HttpClient.New(Unknown Source)

	at sun.net.www.http.HttpClient.New(Unknown Source)

	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)

	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)

	at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)

	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)

	at net.technicpack.launchercore.restful.RestObject.getRestObject(RestObject.java:56)

	... 2 more

2014/01/26 00:18:30 [iNFO] Launcher took: 1595ms to start

2014/01/26 00:18:59 [iNFO] Auth: {"accessToken":"1f46576916c24742883a78b4dc0bf003","clientToken":"53d7a1f9-735b-4d67-8b7a-4f9439b01cde","selectedProfile":{"id":"cd8f3fc6cd8e487cb24842689c329211","name":"chaosmage100","legacy":true},"availableProfiles":[{"id":"cd8f3fc6cd8e487cb24842689c329211","name":"chaosmage100","legacy":true}]}

2014/01/26 00:18:59 [iNFO] Starting download of https://minotar.net/helm/chaosmage100/100, with 3 tries remaining

[Munaus]

Java Version: version 7 updated 45

You are using an outdated version. Uninstall that one and download the latest, which is version 7 upgrade 51.

Caused by: java.net.SocketException: Address family not supported by protocol family: connect

This is a common problem, the fix is simple. After you downloaded and installed the latest java, find your command window and copy paste the following line

setx _JAVA_OPTIONS -Djava.net.preferIPv4Stack=true