sorry if I practice some Thread necromancy here, but I've got the same issue
this is what the server reads
24.04 21:55:22 [Disconnect] User 0positivo has disconnected, reason: disconnect.genericReason
24.04 21:55:22 [Server] INFO at zt.run(SourceFile:76)
24.04 21:55:22 [Server] INFO at qq.c(NetworkManager.java:423)
24.04 21:55:22 [Server] INFO at qq.h(NetworkManager.java:236)
24.04 21:55:22 [Server] INFO at lx.a(SourceFile:145)
24.04 21:55:22 [Server] INFO at java.io.FilterInputStream.read(FilterInputStream.java:83)
24.04 21:55:22 [Server] INFO at java.net.SocketInputStream.read(SocketInputStream.java:199)
24.04 21:55:22 [Server] INFO at java.net.SocketInputStream.read(SocketInputStream.java:146)
24.04 21:55:22 [Server] INFO at java.net.SocketInputStream.socketRead0(Native Method)
24.04 21:55:22 [Server] INFO java.net.SocketTimeoutException: Read timed out
24.04 21:54:51 [Server] INFO Sending serverside check to: 0positivo
24.04 21:54:50 [Server] INFO 0positivo joined with: [CodeChickenCore 0.5.2, CodeChickenCore 0.5.2, MinecraftForge 3.1.2.94, NotEnoughItems 1.2.2, BuildCraftCore 2.2.14, BuildCraftBuilders 2.2.14, BuildCraftEnergy 2.2.14, BuildCraftFactory 2.2.14, BuildCraftTransport 2.2.14, Forestry 1.4.4.2, IC2 v1.95, Railcraft 5.0.3, RedPowerControl 2.0pr5, RedPowerCore 2.0pr5, RedPowerLighting 2.0pr5, RedPowerLogic 2.0pr5, RedPowerMachine 2.0pr5, RedPowerWiring 2.0pr5, RedPowerWorld 2.0pr5, WirelessRedstoneCore 1.2.0, WirelessRedstoneRedPower 1.2.0, WirelessRedstoneAddons 1.2.0]
here's the server starting up
24.04 22:03:53 [Server] Startup Done (1.912s)! For help, type "help" or "?"
24.04 22:03:53 [Server] INFO Preparing start region for level 0
24.04 22:03:52 [Server] INFO Preparing spawn area: 85%
24.04 22:03:52 [Server] INFO Preparing start region for level -1
24.04 22:03:51 [Server] INFO Preparing start region for level 1
24.04 22:03:51 [Server] INFO Default game type: 0
24.04 22:03:51 [Server] INFO Preparing level "Eudora"
24.04 22:03:51 [Server] INFO Forge Mod Loader load complete, 21 mods loaded
24.04 22:03:51 [Server] INFO http://www.mod-buildcraft.com
24.04 22:03:51 [Server] INFO Copyright (c) SpaceToad, 2011
24.04 22:03:51 [Server] INFO Starting BuildCraft 2.2.14
24.04 22:03:51 [Server] IC2 Portal Gun compatibility not loaded: java.lang.ClassNotFoundException: mod_PortalGun
24.04 22:03:51 [Server] IC2 BuildCraft integration module loaded
24.04 22:03:51 [Server] IC2 Loading IC2 submodule: bcIntegration22x
24.04 22:03:51 [Server] IC2 Submodule not loaded: java.lang.NoClassDefFoundError: buildcraft/api/ITriggerProvider
24.04 22:03:51 [Server] IC2 Loading IC2 submodule: bcIntegration31x
24.04 22:03:51 [Server] INFO CONFLICT @ -204
24.04 22:03:51 [Server] INFO CONFLICT @ -58
24.04 22:03:51 [Server] INFO Forestry: MinecraftForge minor version mismatch, expecting 3.0.x, may lead to unexpected behavior
24.04 22:03:50 [Server] IC2 Config loaded from /home/minecraft/multicraft/servers/server1/./config/IC2.cfg
24.04 22:03:50 [Server] INFO MinecraftForge v3.1.2.94 Initialized
24.04 22:03:50 [Server] INFO MinecraftForge v3.1.2.94 Initialized
24.04 22:03:50 [Server] INFO Loaded codechicken.wirelessredstone.core.CommandFreq
24.04 22:03:50 [Server] INFO Starting Minecraft server on 0.0.0.0:25565
24.04 22:03:50 [Server] INFO Loading properties
24.04 22:03:50 [Server] INFO Forge Mod Loader has loaded 21 mods
24.04 22:03:50 [Server] INFO Loading mods from /home/minecraft/multicraft/servers/server1/mods
24.04 22:03:50 [Server] INFO Forge Mod Loader version 1.0.0.73 for Minecraft 1.2.5 loading
24.04 22:03:50 [Server] INFO Starting minecraft server version 1.2.5
24.04 22:03:50 [Server] INFO 27 achievements
24.04 22:03:50 [Server] INFO 182 recipes
24.04 22:03:49 [Multicraft] Loaded config for "Eudora"
24.04 22:03:49 [Multicraft] Starting Minecraft!
24.04 22:03:49 [Multicraft] Loading Minecraft instance properties
Client crashlog is impossible to retrieve. Normal batch won't cut it, as it only happens on SMP, and Minecraft error will just hang waiting for MC to crash, which doesn't happen
As always, thanks for any help. You've always been extremely helpful to anyone having any kind of trouble. I cannot thank you enough