Websockets on Ubuntu 16.04

I am trying to create a discord bot, and it requires being able to connect to a websocket, but however, whenever I attempt to connect to the websocket through my java code, it times out, but when I run it on my personal PC, it works fine.

Error:

java.lang.RuntimeException: java.net.ConnectException: Connection timed out at net.dv8tion.jda.requests.WebSocketClient.connect(WebSocketClient.java:199) at net.dv8tion.jda.requests.WebSocketClient.<init>(WebSocketClient.java:81) at net.dv8tion.jda.entities.impl.JDAImpl.login(JDAImpl.java:132) at net.dv8tion.jda.JDABuilder.buildAsync(JDABuilder.java:291) at net.dv8tion.jda.JDABuilder.buildBlocking(JDABuilder.java:312) at me.Swedz.pb.Main$1.run(Main.java:29) at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71) at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.ConnectException: Connection timed out at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:668) at com.neovisionaries.ws.client.WebSocketFactory.createDirectRawSocket(WebSocketFactory.java:653) at com.neovisionaries.ws.client.WebSocketFactory.createRawSocket(WebSocketFactory.java:578) at com.neovisionaries.ws.client.WebSocketFactory.createSocket(WebSocketFactory.java:510) at com.neovisionaries.ws.client.WebSocketFactory.createSocket(WebSocketFactory.java:490) at com.neovisionaries.ws.client.WebSocketFactory.createSocket(WebSocketFactory.java:272) at com.neovisionaries.ws.client.WebSocketFactory.createSocket(WebSocketFactory.java:228) at net.dv8tion.jda.requests.WebSocketClient.connect(WebSocketClient.java:191) ... 10 more

Main class:

This code is meant to be run on a Minecraft server, so the onEnable() and onDisable() methods are there for that. (as well as the option to use a BukkitRunnable)

EDIT: I have discovered this only occurs sometimes...

Sorted by: Reset to default

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