Closed FTB Legacy Launcher v1.5.1 having multiple network issues on Windows

[aliu0130]

I am using the FTB Legacy Launcher v1.5.1(not the app). I am having multiple errors in the console apparently related to my internet, and the FTB Launcher is stuck loading on the "Opening main window" screen. I cannot access pastebin, as I am behind the great firewall of china, so here is my log:

Spoiler: View Log

FTB Launcher logs:
[19:16:14] [INFO] : AnalyticsBackgroundThread started
[19:16:14] [INFO] : FTBLaunch starting up (version 1.5.1 Build: 10501)
[19:16:14] [INFO] : OS: Windows 10 10.0 (64-bit)
[19:16:14] [INFO] : Launcher Install Dir: C:\prog\FTBLauncher\FTB_Pack_Install\
[19:16:14] [INFO] : System memory: 2195M free, 8048M total
[19:16:15] [INFO] : The FTB Launcher has found the following Java versions installed:
[19:16:15] [INFO] : Java Version: 1.8.0_231 sorted as: 1.8.0_231 32 Bit Java at : C:\Program Files (x86)\Java\jre1.8.0_231\bin\java.exe
[19:16:15] [INFO] : Java Version: 1.8.0_231 sorted as: 1.8.0_231 64 Bit Java at : C:\Program Files\Java\jre1.8.0_231\bin\java.exe
[19:16:15] [INFO] : Java Version: 1.8.0_231 sorted as: 1.8.0_231 64 Bit Java at : C:\Program Files\Java\jdk1.8.0_231\bin\java.exe
[19:16:15] [INFO] : Java Version: 1.8.0_231 sorted as: 1.8.0_231 64 Bit Java at : C:\Program Files\Java\jre1.8.0_231\bin\java.exe
[19:16:15] [INFO] : Preferred: Java Version: 1.8.0_231 sorted as: 1.8.0_231 64 Bit Java at : C:\Program Files\Java\jre1.8.0_231\bin\java.exe
[19:16:15] [INFO] : [i18n] Fallback enUS loaded
[19:16:15] [INFO] : [i18n] enUS English (US) language file loaded!
[19:16:15] [INFO] : Checking installation location
[19:16:15] [INFO] : Loading user data
[19:16:15] [INFO] : Creating Console window
[19:16:15] [INFO] : Creating main window
[19:16:16] [INFO] : [i18n] Added 0 enUS to options pane
[19:16:16] [INFO] : [i18n] Added 1 cyGB to options pane
[19:16:16] [INFO] : [i18n] Added 2 daDK to options pane
[19:16:16] [INFO] : [i18n] Added 3 deDE to options pane
[19:16:16] [INFO] : [i18n] Added 4 enGB to options pane
[19:16:16] [INFO] : [i18n] Added 5 enUS to options pane
[19:16:16] [INFO] : [i18n] Added 6 esES to options pane
[19:16:16] [INFO] : [i18n] Added 7 fiFI to options pane
[19:16:16] [INFO] : [i18n] Added 8 frCA to options pane
[19:16:16] [INFO] : [i18n] Added 9 frFR to options pane
[19:16:16] [INFO] : [i18n] Added 10 jaJP to options pane
[19:16:16] [INFO] : [i18n] Added 11 itIT to options pane
[19:16:16] [INFO] : [i18n] Added 12 maHU to options pane
[19:16:16] [INFO] : [i18n] Added 13 nlNL to options pane
[19:16:16] [INFO] : [i18n] Added 14 noNO to options pane
[19:16:16] [INFO] : [i18n] Added 15 plPL to options pane
[19:16:16] [INFO] : [i18n] Added 16 ptBR to options pane
[19:16:16] [INFO] : [i18n] Added 17 ptPT to options pane
[19:16:16] [INFO] : [i18n] Added 18 ruRU to options pane
[19:16:16] [INFO] : [i18n] Added 19 svSE to options pane
[19:16:16] [INFO] : [i18n] Added 20 zhCN to options pane
[19:16:16] [INFO] : [i18n] Added 21 zhTW to options pane
[19:16:16] [INFO] : [i18n] enUS English (US) language file loaded!
[19:16:16] [INFO] : Setting up Launcher
[19:16:16] [INFO] : Downloading pack data
[19:16:16] [INFO] : Local Authlib Version is good, skipping Download
[19:16:16] [INFO] : Adding Authlib to Classpath
[19:18:01] [ERROR] : Error while selecting server: java.lang.NullPointerException
java.io.StringReader.<init>(Unknown Source)
com.google.gson.JsonParser.parse(JsonParser.java:45)
net.ftb.util.DownloadUtils.run(DownloadUtils.java:472)
[19:18:01] [INFO] : Using download server Automatic:UNKNOWN on host UNKNOWN (89.187.185.162)
[19:26:15] [WARN] : Impartial Modpack information. Please restart launcher to continue download
[19:26:15] [INFO] : Opening main window
[19:26:15] [ERROR] : Unhandled exception in Thread[AWT-EventQueue-0,6,main]: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
java.util.ArrayList.rangeCheck(Unknown Source)
java.util.ArrayList.get(Unknown Source)
net.ftb.data.ModPack.getPack(ModPack.java:137)
net.ftb.data.Settings.getLastFTBPack(Settings.java:225)
net.ftb.gui.LaunchFrame$17.run(LaunchFrame.java:581)
java.awt.event.InvocationEvent.dispatch(Unknown Source)
java.awt.EventQueue.dispatchEventImpl(Unknown Source)
java.awt.EventQueue.access$500(Unknown Source)
java.awt.EventQueue$3.run(Unknown Source)
java.awt.EventQueue$3.run(Unknown Source)
java.security.AccessController.doPrivileged(Native Method)
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
java.awt.EventQueue.dispatchEvent(Unknown Source)
java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
java.awt.EventDispatchThread.pumpEvents(Unknown Source)
java.awt.EventDispatchThread.pumpEvents(Unknown Source)
java.awt.EventDispatchThread.run(Unknown Source)
[19:26:15] [INFO] : loading map information...
[19:26:15] [INFO] : loading texture pack information...
[19:27:52] [ERROR] : Error loading texture pack info: java.net.ConnectException: Connection timed out: connect
java.net.DualStackPlainSocketImpl.connect0(Native Method)
java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
java.net.AbstractPlainSocketImpl.connect(Unknown Source)
java.net.PlainSocketImpl.connect(Unknown Source)
java.net.SocksSocketImpl.connect(Unknown Source)
java.net.Socket.connect(Unknown Source)
sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source)
sun.net.NetworkClient.doConnect(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.http.HttpClient.openServer(Unknown Source)
sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
java.net.URL.openStream(Unknown Source)
net.ftb.util.AppUtils.downloadXML(AppUtils.java:61)
net.ftb.workers.TexturePackLoader.run(TexturePackLoader.java:44)
[19:36:57] Logs copied to clipboard

I have tried restarting the Launcher multiple times, to no avail. The launcher worked yesterday(or was it this morning? I don't remember), when I opened minecraft with FTBAcademy.
EDIT: I have also tried disabling my avast antivirus
EDIT 2:creeperrepo.net seems to redirect me to yahoo.

 

[grandrolf]

I have also tried disabling my avast antivirus

Disable doesn't always work, add exceptions for java + the launcher folder structure.

Then do a force update of the pack, and try again - instructions for that can be found here:

Feed The Beast Knowledge Base

If you still have issues, post new log.

 

[aliu0130]

Disable doesn't always work, add exceptions for java + the launcher folder structure.

Then do a force update of the pack, and try again - instructions for that can be found here:

Feed The Beast Knowledge Base

If you still have issues, post new log.

So, yesterday when I was having the issue, I couldn't get in the launcher itself and was stuck loading on the opening main window screen. BUT today it started without any problem at all! Maybe creeperhost/creeperrepo was down yesterday afternoon in my country

 

[manmaed]

just tested this on a new install and it seems fine are you still having issues?

 

[aliu0130]

To clarify, I don't have any issues at all now.