FTB Revelation Client Randomly DC'd from Server

[RulingCommander]

Title FTB Revelation Client Randomly DC'd from Server

Launcher Type Twitch Desktop App

Modpack FTB Revelation

Modpack version 1.8.0

Have you modified the pack? No

Link to log file https://paste.feed-the-beast.com/view/fe0a4ac5

Details of the issue My friend and I have been attempting to play on an FTB Revelation server. I can stay on the server fine, but he gets kicked after a random amount of time (max about 10 minutes) for what appears to be a random error (they all vary, but seem network related). This occurred on both a server hosted locally on my end and one hosted nearby myself online. We have tried:
-reinstalling his modpack,
-disabling firewalls,
-resetting player data, and
-different modpacks (DW20 1.12 and All the Mods 3)
all to no avail.
Any help would be greatly appreciated!

 

[TheMadCat]

Is the log file his or the server? From what I can tell I assume it's his log files.

Please update his java! He running Java version is 1.8.0_25. As of this post it's 8 Update 171! Here is the link to update java.
How much ram does his system have? It seem java was given around 4GB.
Try disable his anti-virus.

 

[jikuja]

If you are suggesting java updates you should also tell how to configure twitch to use newer java version. And you should also remember to tell that in some cases java newer than 8u51 does not work with opengl. Should I continue?

 

[RulingCommander]

So we tried updating his java, and while his game now launches significantly faster, it still dcs him (it turns out mine also uses 1.8.0_25, as Twitch/Curse keeps its own Java install). His system has 16GB RAM, and his anti-virus and firewall are disabled.

All the server log shows is PLAYER joined the game, PLAYER lost connection: Disconnected, PLAYER leftthe

 

[TheMadCat]

What is his AV? Try uninstalling the AV, may need use software vendor removal tool. (Because using add/removing AV suck at uninstalling itself. ) Install MalwareBytes and run a "custom" scan checking C: and rootkits. Do NOT just run a scan as this is threat scan which is limited. https://www.malwarebytes.com/

I have seem disabling AV/firewall still block stuff. Also, seen virus cause problems. I also seen people say they have no virus while MBytes says otherwise.

Is he connect using wireless or Ethernet? Try open command line and run "ping google.com -t" and "ping <whateverIsHisDefaultGatewayAkaRouterIP> -t" to see if there any drops. When he disconnect take look at the command line to see if there drop. To stop hold Ctrl+c

--

Jikuja, I don't use twitch. So, not going spent time looking how get Java work with it. If persons had a problem with getting it to work, then I look for how-to. From the logs Immersive Engineering stating "This version causes crashes with the Engineer's manual. These crashes are close to impossible to fix for us. You can prevent the crashes by installing up-to-date Java (make sure to use Java 8, not Java 9) and forcing your launcher to use it." Didn't know about "opengl". You do have point here, however when there a problem like this updating software good way to fix it.

 

[jikuja]

. You can prevent the crashes by installing up-to-date Java (make sure to use Java 8, not Java 9) and forcing your launcher to use it." Didn't know about "opengl". You do have point here, however when there a problem like this updating software good way to fix it.

Did you actually read the message? Let's quote it's again

in some cases java newer than 8u51 does not work with opengl

ref: https://github.com/LWJGL/lwjgl/issues/119

 

[TheMadCat]

Odd, I believe my statement which you quote did state at the end. Lets quote that for you and BOLD it.

.... Didn't know about "opengl". You do have point here, however when there a problem like this updating software good way to fix it.

Also, opengl was for Windows 10 and not Windows 8.1 which was stated in log file. I would agree that problem could also apply to Windows 8.1. However, looking more closely at the ticket I see it was created "opened this Issue on Aug 4, 2015". Most of the time these problem should have been fix already. Plus, that's odd problem with Java and opengl. When dealing with software problems first thing you do is update it to latest version that software aka mod package recommends.

Lets get back to the topic of helping RulingCommander.

 

[jikuja]

However, looking more closely at the ticket I see it was created "opened this Issue on Aug 4, 2015". Most of the time these problem should have been fix already

No, that will not get ever fixed. Intel won't fix their drivers. Source: the bug report.

Also, opengl was for Windows 10 and not Windows 8.1 which was stated in log file. I would agree that problem could also apply to Windows 8.1.

Java 8u60 is the first version which shows corrent version for Windows 10. ref: https://bugs.openjdk.java.net/browse/JDK-8066504

----

Anyway OP should check AV as suggested. Also firewall and double checking pack version might be useful.

Is server forge based or cauldron/some other similar not supported modified server system?

 

[RulingCommander]

I'll have him install and run an AV scan to check for anything, but as of yet this is the only instance I know of him having random DC issues

Ping and tracert both came back clean, greatest response time on trace was a bit over 100ms.

He is running on wireless.

Sorry for the long wait on the reply, I really appreciate the support!

 

[TheMadCat]

How long was the ping? When troubleshooting networking problems want run ping for bit like 30 to 45 min. You can have it min so do other stuff. For example I had new router which the wireless would cut out every 10 minutes or so.

As jikuja ask are you running default version of the mod pack server or is it modify? What type of server are you using? Linux, Windows, etc?

From first post it seem he has problem stay connect to your server and another one around you. What about public server?

How old is his router & modem? The normal life span is 5 to 3 years, which normal start see problems.

 

[RulingCommander]

I'll ask him when he's next on to run a longer ping, as well as an AV check.

The server is unmodified, running on windows, and he didn't get kicked off a public server, but he didn't extensively test that and the time he stayed on was comparable to a couple of attempts at remaing on the one that I rent.

 

[TheMadCat]

So he has problem with both local by you and rented one which is close-by to you. While you have no problem connecting to rented server. Also, have him ping rented server for bit.

For both of you what is you ISP?

If you have a laptop that can play Minecraft and your friend live close by try crashing at his place for while to see if you say connect. Even if it work with your laptop, doesn't mean router not bad.