Minecraft can't connect to the Mojang servers? - Java Edition Support - Support - Minecraft Forum

#1 Jan 28, 2015

Poyoarya

Tree Puncher
Join Date: 12/5/2011
Posts: 18
Member Details

Whenever I start up the Minecraft client, it opens as normal, except that it allows me to only play in Offline Mode. I suspected this could be having to do with Mojang's servers being down, but that was not the case. The console logs it as such:

[21:34:06 INFO]: Refreshing local version list...
[21:34:06 INFO]: Refreshing remote version list...
[21:34:11 ERROR]: Unexpected exception refreshing version list
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1917) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:301) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:295) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1471) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:212) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:936) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.process_record(Handshaker.java:871) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1043) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1343) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:563) ~[?:1.8.0_25]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1511) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) ~[?:1.8.0_25]
at com.mojang.launcher.Http.performGet(Http.java:54) ~[launcher.jar:1.6.5]
at net.minecraft.launcher.updater.RemoteVersionList.getContent(RemoteVersionList.java:27) ~[launcher.jar:1.6.5]
at net.minecraft.launcher.updater.VersionList.refreshVersions(VersionList.java:85) ~[launcher.jar:1.6.5]
at net.minecraft.launcher.updater.MinecraftVersionManager.refreshVersions(MinecraftVersionManager.java:60) ~[launcher.jar:1.6.5]
at net.minecraft.launcher.Launcher$2.run(Launcher.java:132) [launcher.jar:1.6.5]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387) ~[?:1.8.0_25]
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) ~[?:1.8.0_25]
at sun.security.validator.Validator.validate(Validator.java:260) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1453) ~[?:1.8.0_25]
... 22 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:145) ~[?:1.8.0_25]
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:131) ~[?:1.8.0_25]
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280) ~[?:1.8.0_25]
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382) ~[?:1.8.0_25]
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) ~[?:1.8.0_25]
at sun.security.validator.Validator.validate(Validator.java:260) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1453) ~[?:1.8.0_25]
... 22 more
[21:34:12 INFO]: Loaded 1 profile(s); selected 'Poyoarya'
[21:34:12 INFO]: Refreshing auth...
[21:34:12 INFO]: Logging in with access token
[21:34:14 ERROR]: Exception whilst logging into profile
com.mojang.authlib.exceptions.AuthenticationUnavailableException: Cannot contact authentication server
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:71) ~[launcher.jar:1.6.5]
at com.mojang.authlib.yggdrasil.YggdrasilUserAuthentication.logInWithToken(YggdrasilUserAuthentication.java:132) ~[launcher.jar:1.6.5]
at com.mojang.authlib.yggdrasil.YggdrasilUserAuthentication.logIn(YggdrasilUserAuthentication.java:55) ~[launcher.jar:1.6.5]
at net.minecraft.launcher.Launcher.ensureLoggedIn(Launcher.java:214) [launcher.jar:1.6.5]
at net.minecraft.launcher.Launcher$2.run(Launcher.java:168) [launcher.jar:1.6.5]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_25]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1917) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:301) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:295) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1471) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:212) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:936) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.process_record(Handshaker.java:871) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1043) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1343) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:563) ~[?:1.8.0_25]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1281) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1256) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250) ~[?:1.8.0_25]
at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:73) ~[launcher.jar:1.6.5]
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54) ~[launcher.jar:1.6.5]
... 9 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387) ~[?:1.8.0_25]
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) ~[?:1.8.0_25]
at sun.security.validator.Validator.validate(Validator.java:260) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1453) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:212) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:936) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.process_record(Handshaker.java:871) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1043) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1343) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:563) ~[?:1.8.0_25]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1281) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1256) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250) ~[?:1.8.0_25]
at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:73) ~[launcher.jar:1.6.5]
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54) ~[launcher.jar:1.6.5]
... 9 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:145) ~[?:1.8.0_25]
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:131) ~[?:1.8.0_25]
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280) ~[?:1.8.0_25]
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382) ~[?:1.8.0_25]
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292) ~[?:1.8.0_25]
at sun.security.validator.Validator.validate(Validator.java:260) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229) ~[?:1.8.0_25]
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1453) ~[?:1.8.0_25]
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:212) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:936) ~[?:1.8.0_25]
at sun.security.ssl.Handshaker.process_record(Handshaker.java:871) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1043) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1343) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371) ~[?:1.8.0_25]
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:563) ~[?:1.8.0_25]
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1281) ~[?:1.8.0_25]
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1256) ~[?:1.8.0_25]
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250) ~[?:1.8.0_25]
at com.mojang.authlib.HttpAuthenticationService.performPostRequest(HttpAuthenticationService.java:73) ~[launcher.jar:1.6.5]
at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:54) ~[launcher.jar:1.6.5]
... 9 more

The thing is, I can access all of Minecraft's and Mojang's websites just fine.

However, when I use the command prompt to ping either site, it fails.

Does anyone have an idea of what might be going on?

#2 Jan 29, 2015

gerbil

Enderman Ender
Join Date: 6/3/2011
Posts: 8,485
Member Details

Java is having trouble with the SSL connections.
First thought is that you have a program like Avast! that has SSL scanning enabled. Java will not allow SSL connections to be intercepted (security breached). Second thought is that occasionally someone reports that re-installing Java fixes this kind of error.