1 of many players cannot join server
I'm hosting a server for my group of friends, and generally it has been running with no issues. Today one of the users suddenly got disconnected however, after creating and using the Nature's Compass mod (which others of us have already used without errors), and everytime they try to rejoin they fall through the world for a few minutes before being able to walk around but not interact with the world, and other players see them standing still.
Disconnect errors seem to change. One of them was this:
"io.netty.handler.codec.decoderexception: java.util.zip.dataformatexception: invalid distance too far back"
Serverside logs show nothing out of the ordinary, attached are the 2 latest client side logs.
We've tried the following:
Removed the Nature's Compass item from their inventory.
TP'd to a different chunk and gave creative gamemode
Restarted server router
Restarted client router
Reinstalled client modpack
23 Replies
Please use a paste service instead!
Paste services are more mobile friendly and easier to read than just posting a log file
latest_1.log
latest.log
Requested by philrow#0
Thanks for asking your question!
Make sure to provide as much helpful information as possible such as logs/what you tried and what your exact issue is
Make sure to mark solved when issue is solved!!!
/close
!close
!solved
!answered
Requested by philrow#0
it seems like their system clock might be set wrong?
just a wild guess of mine, but that error message seems to imply something like that
as in their windows system clock?
Yes
their system clock shows their correct time
Internet suggests that the user maybe has crappy wifi. Have them use ethernet cable?
we considered the same thing - issue is they game in the basement where there is no ethernet cables. Issue hasn't been a thing for the past 2-3 weeks the server has been up either, so it feels like a weird time for it to appear
had them do a speedtest and packet loss test as well, both seemed fine
Define "seemed fine"
1 out of 150 packets were lost
6 ms ping
1 out of 150 is a lot actually
Have them do a winMTR to the server while trying to connect.
it was the same result I got iirc
anything in particular we should be looking for when doing the winMTR test?
Have it run for like 100 pings (while connecting) and dm the results to me?
Will do!
@Philrow thanks for sending that mtr to me
Notice the last 5 rows in your list, see how the lowest loss is 16%?
Is this hosted at your house?
Yes it's selfhosted on my NAS
Also we just tried again, and she is now able to connect
so I suppose it just came down to a bad connection between us for that period of time?
Can you do an mtr to the disconnecting user from your NAS?
Because you might need to make an ISP call.
The MTR I sent you is from the disconnecting user to my NAS/the MC server
Yes, I'm asking for the inverse.
From your NAS to the user
ah I gotcha
Thanks for sending that to me
I'm not seeing anything weird like from the last report
If they can join now, great. If you're having problems again try an mtr from you to them (and them to you). If you see loss on both, call your ISP.
Fair enough, thanks for the help tho!
!solved
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Requested by philrow#0