Is it possible to disable this mod client side if the player attempts to login to a Vanilla server?
Normally all forge mods allow connecting to Vanilla but this one doesn't it gets an infinite loop error:

01.01 04:21:39 [Server] INFO devryb has left the hub!
01.01 04:21:39 [Disconnect] User devryb has disconnected, reason: Internal server error
01.01 04:21:39 [Multicraft] devryb ran command Message of the Day
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:734) [hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:186) ~[hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.PacketPlayInCustomPayload.handle(PacketPlayInCustomPayload.java:51) ~[hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.PacketPlayInCustomPayload.a(PacketPlayInCustomPayload.java:39) ~[hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:1964) ~[hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at org.bukkit.plugin.messaging.StandardMessenger.dispatchIncomingMessage(StandardMessenger.java:419) ~[hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO at org.bukkit.plugin.messaging.StandardMessenger.validateChannel(StandardMessenger.java:446) ~[hub.jar:git-Spigot-1649]
01.01 04:21:39 [Server] INFO org.bukkit.plugin.messaging.ChannelNameTooLongException: Attempted to send a Plugin Message to a channel that was too large. The maximum length a channel may be is 16 chars (attempted 18 - 'INFINITE_INVO_CHAN.

This isn't actually a bug with client-server side actions. It appears to be a packet channel name limit which InfiniteInvo breaks. I'll fix it up now

Would also like the report this issue, its happening to every player that joins our network who has it installed (no other mods do this)

This is fixed now I believe

07.01 14:04:50 [Server] INFO at cpw.mods.fml.common.network.simpleimpl.SimpleChannelHandlerWrapper.channelRead0(SimpleChannelHandlerWrapper.java:17) ~[SimpleChannelHandlerWrapper.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.05.212]
07.01 14:04:50 [Server] INFO at cpw.mods.fml.common.network.simpleimpl.SimpleChannelHandlerWrapper.channelRead0(SimpleChannelHandlerWrapper.java:37) ~[SimpleChannelHandlerWrapper.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.05.212]
07.01 14:04:50 [Server] INFO at infiniteinvo.network.InvoPacket$HandleServer.onMessage(InvoPacket.java:48) ~[InvoPacket$HandleServer.class:?]
07.01 14:04:50 [Server] INFO at infiniteinvo.network.InvoPacket$HandleServer.onMessage(InvoPacket.java:91) ~[InvoPacket$HandleServer.class:?]
07.01 14:04:50 [Server] INFO java.lang.NullPointerException
07.01 14:04:50 [Server] ERROR There was a critical exception handling a packet on channel I_INVO_CHAN
07.01 14:04:50 [Server] INFO at java.lang.Thread.run(Thread.java:745) [?:1.7.0_65]
07.01 14:04:50 [Server] INFO at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:658) [MinecraftServer.class:?]
07.01 14:04:50 [Server] INFO at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:798) [MinecraftServer.class:?]
07.01 14:04:50 [Server] INFO at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:423) [lt.class:?]
07.01 14:04:50 [Server] INFO at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:980) [MinecraftServer.class:?]
07.01 14:04:50 [Server] INFO at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173) [nc.class:?]
07.01 14:04:50 [Server] INFO at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:244) [ej.class:?]
07.01 14:04:50 [Server] INFO at cpw.mods.fml.common.network.internal.FMLProxyPacket.func_148833_a(FMLProxyPacket.java:77) [FMLProxyPacket.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.05.212]
07.01 14:04:50 [Server] INFO at io.netty.channel.embedded.EmbeddedChannel.writeInbound(EmbeddedChannel.java:169) [EmbeddedChannel.class:?]
07.01 14:04:50 [Server] INFO at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) [DefaultChannelPipeline.class:?]
07.01 14:04:50 [Server] INFO at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]
07.01 14:04:50 [Server] INFO at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]
07.01 14:04:50 [Server] INFO at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) [MessageToMessageCodec.class:?]
07.01 14:04:50 [Server] INFO at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [MessageToMessageDecoder.class:?]
07.01 14:04:50 [Server] INFO at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [DefaultChannelHandlerContext.class:?]
07.01 14:04:50 [Server] INFO at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [DefaultChannelHandlerContext.class:?]
07.01 14:04:50 [Server] INFO at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:98) ~[SimpleChannelInboundHandler.class:?]
07.01 14:04:50 [Server] INFO at cpw.mods.fml.common.network.simpleimpl.SimpleChannelHandlerWrapper.channelRead0(SimpleChannelHandlerWrapper.java:17) ~[SimpleChannelHandlerWrapper.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.05.212]
07.01 14:04:50 [Server] INFO at cpw.mods.fml.common.network.simpleimpl.SimpleChannelHandlerWrapper.channelRead0(SimpleChannelHandlerWrapper.java:37) ~[SimpleChannelHandlerWrapper.class:git-Cauldron-MCPC-Plus-1.7.10-1.1236.05.212]
07.01 14:04:50 [Server] INFO at infiniteinvo.network.InvoPacket$HandleServer.onMessage(InvoPacket.java:48) ~[InvoPacket$HandleServer.class:?]
07.01 14:04:50 [Server] INFO at infiniteinvo.network.InvoPacket$HandleServer.onMessage(InvoPacket.java:91) ~[InvoPacket$HandleServer.class:?]
07.01 14:04:50 [Server] INFO java.lang.NullPointerException
07.01 14:04:50 [Server] ERROR SimpleChannelHandlerWrapper exception

This is occuring since the update whilst joining the actual mod server (Can connect to vanilla server tho)