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Java Minecraft server giving error

After trying to play on my local Minecraft server, I got met with a few weird occurences:

1. Instead of a 0/20 for the player count, I saw "???"
2. When joining, it said "Encrypting" until the connection timed out

3. On the server side, it stated my UUID but nothing else

4. Once the connection times out, sometimes nothing happens and I can try again. Other times the server crashes and I get this crash report:

---- Minecraft Crash Report ----
// My bad.

Time: 1/18/21 12:15 PM
Description: Watching Server

java.lang.Error: Watchdog
	at brx.a(SourceFile:209)
	at brz.a(SourceFile:128)
	at brx.d(SourceFile:204)
	at brx.d_(SourceFile:408)
	at aqm.ds(SourceFile:1424)
	at aqm.c_(SourceFile:1409)
	at aqm.aU(SourceFile:2747)
	at aqd.a(SourceFile:57)
	at aqd$$Lambda$3548/1515421413.test(Unknown Source)
	at java.util.function.Predicate.lambda$and$0(Unknown Source)
	at java.util.function.Predicate$$Lambda$1701/455218098.test(Unknown Source)
	at cgh.a(SourceFile:502)
	at brx.a(SourceFile:748)
	at aqm.dQ(SourceFile:2596)
	at aqm.k(SourceFile:2555)
	at aqn.k(SourceFile:542)
	at apy.k(SourceFile:127)
	at azz.k(SourceFile:54)
	at baa.k(SourceFile:506)
	at aqm.j(SourceFile:2254)
	at aqn.j(SourceFile:342)
	at baa.j(SourceFile:291)
	at aag.a(SourceFile:621)
	at aag$$Lambda$3533/1409313713.accept(Unknown Source)
	at brx.a(SourceFile:561)
	at aag.a(SourceFile:411)
	at net.minecraft.server.MinecraftServer.b(SourceFile:871)
	at zg.b(SourceFile:312)
	at net.minecraft.server.MinecraftServer.a(SourceFile:811)
	at net.minecraft.server.MinecraftServer.w(SourceFile:670)
	at net.minecraft.server.MinecraftServer.a(SourceFile:257)
	at net.minecraft.server.MinecraftServer$$Lambda$3255/2070950071.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server Watchdog
Stacktrace:
	at brx.a(SourceFile:209)
	at brz.a(SourceFile:128)
	at brx.d(SourceFile:204)
	at brx.d_(SourceFile:408)
	at aqm.ds(SourceFile:1424)
	at aqm.c_(SourceFile:1409)
	at aqm.aU(SourceFile:2747)
	at aqd.a(SourceFile:57)
	at aqd$$Lambda$3548/1515421413.test(Unknown Source)
	at java.util.function.Predicate.lambda$and$0(Unknown Source)
	at java.util.function.Predicate$$Lambda$1701/455218098.test(Unknown Source)
	at cgh.a(SourceFile:502)
	at brx.a(SourceFile:748)
	at aqm.dQ(SourceFile:2596)
	at aqm.k(SourceFile:2555)
	at aqn.k(SourceFile:542)
	at apy.k(SourceFile:127)
	at azz.k(SourceFile:54)
	at baa.k(SourceFile:506)
	at aqm.j(SourceFile:2254)
	at aqn.j(SourceFile:342)
	at baa.j(SourceFile:291)
	at aag.a(SourceFile:621)
	at aag$$Lambda$3533/1409313713.accept(Unknown Source)
	at brx.a(SourceFile:561)
	at aag.a(SourceFile:411)
	at net.minecraft.server.MinecraftServer.b(SourceFile:871)
	at zg.b(SourceFile:312)
	at net.minecraft.server.MinecraftServer.a(SourceFile:811)
	at net.minecraft.server.MinecraftServer.w(SourceFile:670)
	at net.minecraft.server.MinecraftServer.a(SourceFile:257)

-- Thread Dump --
Details:
	Threads: "Netty Server IO #2" Id=45 RUNNABLE
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source)
	at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source)
	-  locked io.netty.channel.nio.SelectedSelectionKeySet@7b0fc15
	-  locked java.util.Collections$UnmodifiableSet@9771293
	-  locked sun.nio.ch.WindowsSelectorImpl@d489765
	at sun.nio.ch.SelectorImpl.select(Unknown Source)
	at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
	at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:756)
	...


"Netty Server IO #1" Id=44 RUNNABLE
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source)
	at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source)
	-  locked io.netty.channel.nio.SelectedSelectionKeySet@484a18a8
	-  locked java.util.Collections$UnmodifiableSet@481a15e0
	-  locked sun.nio.ch.WindowsSelectorImpl@794875fa
	at sun.nio.ch.SelectorImpl.select(Unknown Source)
	at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
	at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:756)
	...


"Server Watchdog" Id=43 RUNNABLE
	at sun.management.ThreadImpl.dumpThreads0(Native Method)
	at sun.management.ThreadImpl.dumpAllThreads(Unknown Source)
	at zj.run(SourceFile:49)
	at java.lang.Thread.run(Unknown Source)


"Netty Server IO #0" Id=35 RUNNABLE
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source)
	at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source)
	at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source)
	at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source)
	-  locked io.netty.channel.nio.SelectedSelectionKeySet@30f22609
	-  locked java.util.Collections$UnmodifiableSet@2865e7e7
	-  locked sun.nio.ch.WindowsSelectorImpl@3048521e
	at sun.nio.ch.SelectorImpl.select(Unknown Source)
	at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
	at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:756)
	...


"ObjectCleanerThread" Id=34 TIMED_WAITING on java.lang.ref.ReferenceQueue$Lock@a151648
	at java.lang.Object.wait(Native Method)
	-  waiting on java.lang.ref.ReferenceQueue$Lock@a151648
	at java.lang.ref.ReferenceQueue.remove(Unknown Source)
	at io.netty.util.internal.ObjectCleaner$1.run(ObjectCleaner.java:54)
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
	at java.lang.Thread.run(Unknown Source)


"D3D Screen Updater" Id=33 TIMED_WAITING on java.lang.Object@2bf6ab6d
	at java.lang.Object.wait(Native Method)
	-  waiting on java.lang.Object@2bf6ab6d
	at sun.java2d.d3d.D3DScreenUpdateManager.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)


"Server console handler" Id=32 RUNNABLE (in native)
	at java.io.FileInputStream.readBytes(Native Method)
	at java.io.FileInputStream.read(Unknown Source)
	at java.io.BufferedInputStream.read1(Unknown Source)
	at java.io.BufferedInputStream.read(Unknown Source)
	-  locked java.io.BufferedInputStream@2c2b3b2b
	at sun.nio.cs.StreamDecoder.readBytes(Unknown Source)
	at sun.nio.cs.StreamDecoder.implRead(Unknown Source)
	at sun.nio.cs.StreamDecoder.read(Unknown Source)
	-  locked java.io.InputStreamReader@5e814412
	at java.io.InputStreamReader.read(Unknown Source)
	...


"DestroyJavaVM" Id=31 RUNNABLE


"Server thread" Id=20 RUNNABLE
	at brx.a(SourceFile:209)
	at brz.a(SourceFile:128)
	at brx.d(SourceFile:204)
	at brx.d_(SourceFile:408)
	at aqm.ds(SourceFile:1424)
	at aqm.c_(SourceFile:1409)
	at aqm.aU(SourceFile:2747)
	at aqd.a(SourceFile:57)
	...


"Thread-3" Id=27 WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@7c04bedc
	at sun.misc.Unsafe.park(Native Method)
	-  waiting on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@7c04bedc
	at java.util.concurrent.locks.LockSupport.park(Unknown Source)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source)
	at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source)
	at com.mojang.util.QueueLogAppender.getNextLogEvent(QueueLogAppender.java:77)
	at zm.a(SourceFile:137)
	at zm$$Lambda$3270/515213425.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)


"TimerQueue" Id=28 TIMED_WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@173042ec
	at sun.misc.Unsafe.park(Native Method)
	-  waiting on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@173042ec
	at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(Unknown Source)
	at java.util.concurrent.DelayQueue.take(Unknown Source)
	at javax.swing.TimerQueue.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

	Number of locked synchronizers = 1
	- java.util.concurrent.locks.ReentrantLock$NonfairSync@62b7dff2


"AWT-EventQueue-0" Id=26 RUNNABLE
	at sun.java2d.loops.ProcessPath.FillPolygon(Unknown Source)
	at sun.java2d.loops.ProcessPath.fillPath(Unknown Source)
	at sun.java2d.pipe.BufferedRenderPipe.fillPath(Unknown Source)
	at sun.java2d.pipe.BufferedRenderPipe.fill(Unknown Source)
	at sun.java2d.pipe.PixelToParallelogramConverter.fill(Unknown Source)
	at sun.java2d.pipe.ValidatePipe.fill(Unknown Source)
	at sun.java2d.SunGraphics2D.fill(Unknown Source)
	at javax.swing.border.LineBorder.paintBorder(Unknown Source)
	...

	Number of locked synchronizers = 1
	- java.util.concurrent.locks.ReentrantLock$NonfairSync@43c535cc


"AWT-Windows" Id=24 RUNNABLE
	at sun.awt.windows.WToolkit.eventLoop(Native Method)
	at sun.awt.windows.WToolkit.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)


"AWT-Shutdown" Id=23 WAITING on java.lang.Object@1a6e9136
	at java.lang.Object.wait(Native Method)
	-  waiting on java.lang.Object@1a6e9136
	at java.lang.Object.wait(Unknown Source)
	at sun.awt.AWTAutoShutdown.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)


"Java2D Disposer" Id=22 WAITING on java.lang.ref.ReferenceQueue$Lock@46fa95c6
	at java.lang.Object.wait(Native Method)
	-  waiting on java.lang.ref.ReferenceQueue$Lock@46fa95c6
	at java.lang.ref.ReferenceQueue.remove(Unknown Source)
	at java.lang.ref.ReferenceQueue.remove(Unknown Source)
	at sun.java2d.Disposer.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)


"Snooper Timer" Id=21 WAITING on java.util.TaskQueue@534888d7
	at java.lang.Object.wait(Native Method)
	-  waiting on java.util.TaskQueue@534888d7
	at java.lang.Object.wait(Unknown Source)
	at java.util.TimerThread.mainLoop(Unknown Source)
	at java.util.TimerThread.run(Unknown Source)


"Timer hack thread" Id=16 TIMED_WAITING
	at java.lang.Thread.sleep(Native Method)
	at x$6.run(SourceFile:636)


"Attach Listener" Id=5 RUNNABLE


"Signal Dispatcher" Id=4 RUNNABLE


"Finalizer" Id=3 WAITING on java.lang.ref.ReferenceQueue$Lock@3949bc27
	at java.lang.Object.wait(Native Method)
	-  waiting on java.lang.ref.ReferenceQueue$Lock@3949bc27
	at java.lang.ref.ReferenceQueue.remove(Unknown Source)
	at java.lang.ref.ReferenceQueue.remove(Unknown Source)
	at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)


"Reference Handler" Id=2 WAITING on java.lang.ref.Reference$Lock@57c07d19
	at java.lang.Object.wait(Native Method)
	-  waiting on java.lang.ref.Reference$Lock@57c07d19
	at java.lang.Object.wait(Unknown Source)
	at java.lang.ref.Reference.tryHandlePending(Unknown Source)
	at java.lang.ref.Reference$ReferenceHandler.run(Unknown Source)



Stacktrace:
	at zj.run(SourceFile:65)
	at java.lang.Thread.run(Unknown Source)

-- Performance stats --
Details:
	Random tick rate: 1
	Level stats: ResourceKey[minecraft:dimension / minecraft:overworld]: players: 0, entities: 99046 [minecraft:bat:66391,minecraft:bee:32510,minecraft:creeper:27,minecraft:cod:22,minecraft:cow:21], block_entities: 24 [minecraft:chest:12,minecraft:hopper:4,minecraft:piston:4,minecraft:shulker_box:2,minecraft:ender_chest:1], block_ticks: 17, fluid_ticks: 0, chunk_source: ServerChunkCache: 2025,
ResourceKey[minecraft:dimension / minecraft:the_nether]: players: 0, entities: 0 [], block_entities: 0 [], block_ticks: 0, fluid_ticks: 0, chunk_source: ServerChunkCache: 0,
ResourceKey[minecraft:dimension / minecraft:the_end]: players: 0, entities: 0 [], block_entities: 0 [], block_ticks: 0, fluid_ticks: 0, chunk_source: ServerChunkCache: 0

-- System Details --
Details:
	Minecraft Version: 1.16.4
	Minecraft Version ID: 1.16.4
	Operating System: Windows 8.1 (amd64) version 6.3
	Java Version: 1.8.0_271, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 8257285088 bytes (7874 MB) / 10366746624 bytes (9886 MB) up to 10366746624 bytes (9886 MB)
	CPUs: 4
	JVM Flags: 2 total; -Xmx10240M -Xms10240M
	Player Count: 0 / 20; []
	Data Packs: vanilla
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)

Does anyone know what's going on?
I have a batch script set up to start it with 10GB of dedicated RAM, I have it's MoTD set to "Phenom", it's level name set to "Phenom", allow-flight to "true", and my account as an operator, but other than that, everything's default.

 

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Is this server running on the same system as you're playing on?

Community Standards || Tech News Posting Guidelines

---======================================================================---

CPU: R5 3600 || GPU: GTX 1080 || Memory: 16GB @ 3200 || Cooler: Noctua D15 || PSU: 750W EVGA G2 || Case: Define C

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25 minutes ago, Slottr said:

Is this server running on the same system as you're playing on?

No.
It's on a different system within 2 feet of mine.

Both are connected via an Ethernet cable to our router.

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What hardware? Kinda seems like it's too slow to process and times out. 

F@H
Desktop: i7-5960X 4.4GHz, Noctua NH-D14, ASUS Rampage V, 32GB, RTX3080, 2TB NVMe SSD, 2x16TB HDD RAID0, Corsair HX1200, Thermaltake Overseer RX1, Samsung 4K curved 49" TV, 23" secondary

Mobile SFF rig: i9-9900K, Noctua NH-L9i, Asrock Z390 Phantom ITX-AC, 32GB, GTX1070, 2x1TB NVMe SSD RAID0, 2x5TB 2.5" HDD RAID0, Athena 500W Flex (Noctua fan), Custom 4.7l 3D printed case

 

Dell XPS 2 in 1 2019, 32GB, 1TB, 4K

 

GPD Win 2

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Phenom II X4 955

12GB DDR3-1333

It was running fine for a week and then it just gave up today.

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could you try dropping dedicated ram down to 8gig from 10 for the game? 

and maybe player count down to 10?

are there any mods? (it says unknown but that doesnt mean none)

 

just as a test to see if that works...

 

i think you might be squeezing windows 8.1 a bit hard with only 2gig for itself..  ( a linux distro might get away with the 2gigs for itself )

 

 

current main system:

motherboard : AMD FX4130 Quad-Core 3.8Ghz

ram : 8Gig

OS : Win7 Home Premium 64-bit

Video Card : Nvidea Geforce GTX 650

Monitor: 17" LCD X-black Sony

 

Desperately needs an updated system :(

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