I recently made a forge server to play on with a few friends. At first, I attempted to run the server on my computer as I was playing. I was unable to join the server using my ipv4, public ip, and "localhost", so I got a small computer to host the server. Now, every time I attempt to join the server it kicks me after a few seconds. this is the exact thing the server has said every time: 

 

[15:01:58] [User Authenticator #3/INFO] [minecraft/NetHandlerLoginServer]: UUID of player Aidan5750 is d0f5846f-e0ad-4dd8-ba9d-b1203716b4a8
[15:01:59] [Netty Server IO #6/INFO] [FML]: Client protocol version 2
[15:01:59] [Netty Server IO #6/INFO] [FML]: Client attempting to join with 68 mods : [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected] - MC 1.12.2,[email protected],[email protected],[email protected],[email protected]_for_1.12.2,[email protected],[email protected],[email protected],advancedrocketrycore@1,[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],opencomputers|[email protected],[email protected],[email protected],[email protected],fastleafdecay@v14,[email protected],[email protected],[email protected]
[15:01:59] [Netty Server IO #6/INFO] [journeymap]: CLIENT
[15:01:59] [Netty Server IO #6/INFO] [CodeChickenLib-ConfigSync]: Skipping config sync, No mods have registered a syncable config.
[15:02:07] [Server thread/INFO] [FML]: [Server thread] Server side modded connection established
[15:02:07] [Server thread/INFO] [minecraft/PlayerList]: Aidan5750[/10.10.10.248:49971] logged in with entity id 3619 at (177.5, 64.0, 285.5)
[15:02:07] [Server thread/INFO] [dsurround]: Player [Aidan5750] connected with Dynamic Surroundings 3.6.1.0
[15:02:07] [Server thread/INFO] [minecraft/DedicatedServer]: Aidan5750 joined the game
[15:02:07] [Server thread/INFO] [Silent's Gems]: Recalculating tool and armor stats for Aidan5750
[15:02:07] [Server thread/INFO] [Actually Additions]: Sending Player Data to player Aidan5750 with UUID d0f5846f-e0ad-4dd8-ba9d-b1203716b4a8.
[15:02:07] [Server thread/INFO] [Mekanism]: Sent config to 'Aidan5750.'
[15:02:14] [Server thread/WARN] [minecraft/MinecraftServer]: Can't keep up! Did the system time change, or is the server overloaded? Running 2073ms behind, skipping 41 tick(s)
[15:02:23] [Netty Server IO #6/ERROR] [FML]: NetworkDispatcher exception
java.io.IOException: An existing connection was forcibly closed by the remote host
        at sun.nio.ch.SocketDispatcher.read0(Native Method) ~[?:1.8.0_251]
        at sun.nio.ch.SocketDispatcher.read(Unknown Source) ~[?:1.8.0_251]
        at sun.nio.ch.IOUtil.readIntoNativeBuffer(Unknown Source) ~[?:1.8.0_251]
        at sun.nio.ch.IOUtil.read(Unknown Source) ~[?:1.8.0_251]
        at sun.nio.ch.SocketChannelImpl.read(Unknown Source) ~[?:1.8.0_251]
        at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288) ~[PooledUnsafeDirectByteBuf.class:?]
        at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1100) ~[AbstractByteBuf.class:?]
        at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:372) ~[NioSocketChannel.class:?]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:123) [AbstractNioByteChannel$NioByteUnsafe.class:?]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:624) [NioEventLoop.class:?]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:559) [NioEventLoop.class:?]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:476) [NioEventLoop.class:?]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:438) [NioEventLoop.class:?]
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [SingleThreadEventExecutor$5.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_251]
[15:02:23] [Server thread/INFO] [minecraft/NetHandlerPlayServer]: Aidan5750 lost connection: Internal Exception: java.io.IOException: An existing connection was forcibly closed by the remote host
[15:02:23] [Server thread/INFO] [minecraft/DedicatedServer]: Aidan5750 left the game

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