com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server

planetminecraft.com | 4 months ago
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    Planet Minecraft • View topic - Help! Minecraft isnt working

    planetminecraft.com | 4 months ago
    com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
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    java.net.UnknownHostException: s3.amazonaws.com

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Root Cause Analysis

  1. java.net.UnknownHostException

    sessionserver.mojang.com

    at java.net.AbstractPlainSocketImpl.connect()
  2. Java RT
    Socket.connect
    1. java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)[?:1.8.0_25]
    2. java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)[?:1.8.0_25]
    3. java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)[?:1.8.0_25]
    4. java.net.Socket.connect(Socket.java:589)[?:1.8.0_25]
    4 frames
  3. Java JSSE
    SSLSocketImpl.connect
    1. sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:649)[?:1.8.0_25]
    1 frame
  4. Java RT
    HttpsURLConnectionImpl.getInputStream
    1. sun.net.NetworkClient.doConnect(NetworkClient.java:175)[?:1.8.0_25]
    2. sun.net.www.http.HttpClient.openServer(HttpClient.java:432)[?:1.8.0_25]
    3. sun.net.www.http.HttpClient.openServer(HttpClient.java:527)[?:1.8.0_25]
    4. sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:275)[?:1.8.0_25]
    5. sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:371)[?:1.8.0_25]
    6. sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)[?:1.8.0_25]
    7. sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1146)[?:1.8.0_25]
    8. sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:997)[?:1.8.0_25]
    9. sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)[?:1.8.0_25]
    10. sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1511)[?:1.8.0_25]
    11. sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439)[?:1.8.0_25]
    12. sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)[?:1.8.0_25]
    12 frames
  5. com.mojang.authlib
    YggdrasilMinecraftSessionService$1.load
    1. com.mojang.authlib.HttpAuthenticationService.performGetRequest(HttpAuthenticationService.java:126)[HttpAuthenticationService.class:?]
    2. com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54)[YggdrasilAuthenticationService.class:?]
    3. com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:175)[YggdrasilMinecraftSessionService.class:?]
    4. com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService$1.load(YggdrasilMinecraftSessionService.java:59)[YggdrasilMinecraftSessionService$1.class:?]
    5. com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService$1.load(YggdrasilMinecraftSessionService.java:56)[YggdrasilMinecraftSessionService$1.class:?]
    5 frames
  6. Guava
    LocalCache$LocalLoadingCache.getUnchecked
    1. com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524)[guava-17.0.jar:?]
    2. com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317)[guava-17.0.jar:?]
    3. com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280)[guava-17.0.jar:?]
    4. com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195)[guava-17.0.jar:?]
    5. com.google.common.cache.LocalCache.get(LocalCache.java:3934)[guava-17.0.jar:?]
    6. com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938)[guava-17.0.jar:?]
    7. com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821)[guava-17.0.jar:?]
    8. com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4827)[guava-17.0.jar:?]
    8 frames
  7. com.mojang.authlib
    YggdrasilMinecraftSessionService.fillProfileProperties
    1. com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:165)[YggdrasilMinecraftSessionService.class:?]
    1 frame
  8. Unknown
    bwk$3.run
    1. bcd.L(SourceFile:2764)[bcd.class:?]
    2. bwk$3.run(SourceFile:106)[bwk$3.class:?]
    2 frames
  9. Java RT
    Thread.run
    1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[?:1.8.0_25]
    2. java.util.concurrent.FutureTask.run(FutureTask.java:266)[?:1.8.0_25]
    3. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[?:1.8.0_25]
    4. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[?:1.8.0_25]
    5. java.lang.Thread.run(Thread.java:745)[?:1.8.0_25]
    5 frames