As title really, Reinstalled the server files into the *.jar about 10 times or so, starting with a fresh *.jar each time. The server starts up fine, loads the world, sets up the spawn points as usual, as soon as the client tries to connect, the client crashes, eventually being dropped by the server, the last thing the client sees is "Downloading Terrain". Client Crash Log: 8 mods loaded Minecraft Forge 3.3.8.152 FML v2.2.78.153 Forge Mod Loader version 2.2.78.153 for Minecraft 1.2.5 mod_CodeChickenCore : Available (minecraft.jar) mod_MinecraftForge : Available (minecraft.jar) mod_NotEnoughItems : Available (minecraft.jar) mod_SmartMoving : Available (minecraft.jar) mod_TFC_Core : Available (minecraft.jar) mod_UpdateManager : Available (minecraft.jar) mod_ReiMinimap : Available ([1.2.5]ReiMinimap_v3.2_04.zip) mod_InvTweaks : Available (InvTweaks-1.41b-1.2.4.zip) Minecraft has crashed! ---------------------- Minecraft has stopped running because it encountered a problem. --- BEGIN ERROR REPORT 1098327b -------- Generated 18/07/12 21:30 Minecraft: Minecraft 1.2.5 OS: Windows 7 (amd64) version 6.1 Java: 1.7.0_06-ea, Oracle Corporation VM: Java HotSpotâ„¢ 64-Bit Server VM (mixed mode), Oracle Corporation LWJGL: 2.8.3 OpenGL: GeForce GTX 460/PCIe/SSE2 version 4.2.0, NVIDIA Corporation java.lang.RuntimeException: java.lang.NoSuchFieldException: randomSeed at cpw.mods.fml.common.ReflectionHelper.setPrivateValue(ReflectionHelper.java:93) at TFC.Core.TFC_Core.SetupWorld(TFC_Core.java:1089) at TFC.Core.PacketHandler.onPacketData(PacketHandler.java:252) at forge.MessageManager.dispatchIncomingMessage(MessageManager.java:432) at forge.ForgeHooksClient.onCustomPayload(ForgeHooksClient.java:620) at adl.a(NetClientHandler.java:1170) at ee.a(SourceFile:46) at lg.b(NetworkManager.java:343) at adl.b(NetClientHandler.java:71) at ajy.a(SourceFile:45) at net.minecraft.client.Minecraft.k(Minecraft.java:1572) at net.minecraft.client.Minecraft.x(Minecraft.java:822) at net.minecraft.client.Minecraft.run(Minecraft.java:750) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.NoSuchFieldException: randomSeed at java.lang.Class.getDeclaredField(Unknown Source) at cpw.mods.fml.common.ReflectionHelper.setPrivateValue(ReflectionHelper.java:83) ... 13 more --- END ERROR REPORT b230c4fd ---------- Server Log: 2012-07-18 21:28:26 [iNFO] Starting minecraft server version 1.2.5 Jul 18, 2012 9:28:26 PM cpw.mods.fml.common.FMLCommonHandler beginLoading INFO: Attempting early MinecraftForge initialization Jul 18, 2012 9:28:26 PM cpw.mods.fml.common.FMLCommonHandler beginLoading INFO: Completed early MinecraftForge initialization 2012-07-18 21:28:26 [iNFO] Forge Mod Loader version 2.2.78.153 for Minecraft 1.2 .5 loading 2012-07-18 21:28:26 [iNFO] Loading mods from C:\MCServ\TFCServ\mods 2012-07-18 21:28:26 [iNFO] Forge Mod Loader has loaded 6 mods MinecraftForge v3.3.8.152 Initialized 2012-07-18 21:28:26 [iNFO] MinecraftForge v3.3.8.152 Initialized 2012-07-18 21:28:26 [iNFO] Loading properties 2012-07-18 21:28:26 [iNFO] Starting Minecraft server on *:25565 2012-07-18 21:28:26 [iNFO] -agentlib:jdwp = -1 CONFLICT @ -204 item slot already occupied by dd@f4721c7 while adding ItemMobSpa wner@6fa97a7 PlayerAPI 1.3 Created PlayerAPI: registered PlayerTFC CONFLICT @ -239 item slot already occupied by la@4d8e5d82 while adding TFC.Items .ItemCustomWood@3d9d2995 CONFLICT @ -238 item slot already occupied by wf@4ce10d40 while adding TFC.Items .ItemCustomLeaves@4b2d0c2e CONFLICT @ -250 item slot already occupied by ob@791a9134 while adding TFC.Items .ItemSapling@3f332b09 CONFLICT @ -251 item slot already occupied by la@6e2404a0 while adding TFC.Items .ItemTerraPlanks@7eabdcdd CONFLICT @ -45 item slot already occupied by TFC.Items.ItemIgEx@45317223 while a dding TFC.Items.ItemIgEx@313c7b52 CONFLICT @ -46 item slot already occupied by TFC.Items.ItemSed@79c45dbe while ad ding TFC.Items.ItemSed@4ae6a366 CONFLICT @ -47 item slot already occupied by TFC.Items.ItemIgIn@6bf1a3f4 while a dding TFC.Items.ItemIgIn@45431f89 CONFLICT @ -44 item slot already occupied by TFC.Items.ItemMM@39cb7ee5 while add ing TFC.Items.ItemMM@5ef80a07 CONFLICT @ -43 item slot already occupied by TFC.Items.ItemOre1@6e5a8246 while a dding TFC.Items.ItemOre1@781efa43 CONFLICT @ -42 item slot already occupied by TFC.Items.ItemOre2@39c08251 while a dding TFC.Items.ItemOre2@dabb176 CONFLICT @ -41 item slot already occupied by TFC.Items.ItemOre3@30fc0fd while ad ding TFC.Items.ItemOre3@7f47239c CONFLICT @ -56 item slot already occupied by TFC.Items.ItemIgExCobble@1773180c w hile adding TFC.Items.ItemIgExCobble@52fc7db CONFLICT @ -57 item slot already occupied by TFC.Items.ItemSedCobble@3e9fd86 whi le adding TFC.Items.ItemSedCobble@77036a6b CONFLICT @ -58 item slot already occupied by TFC.Items.ItemIgInCobble@13fd3d8 wh ile adding TFC.Items.ItemIgInCobble@56d0a8c CONFLICT @ -55 item slot already occupied by TFC.Items.ItemMMCobble@39cf701c whi le adding TFC.Items.ItemMMCobble@61c95bea CONFLICT @ -68 item slot already occupied by TFC.Items.ItemIgExCobble@6ab191cd w hile adding TFC.Items.ItemIgExCobble@2fdb6074 CONFLICT @ -69 item slot already occupied by TFC.Items.ItemSedCobble@6b997837 wh ile adding TFC.Items.ItemSedCobble@28a39a11 CONFLICT @ -70 item slot already occupied by TFC.Items.ItemIgInCobble@cd7e6ef wh ile adding TFC.Items.ItemIgInCobble@327a5b7f CONFLICT @ -67 item slot already occupied by TFC.Items.ItemMMCobble@7f0d08bc whi le adding TFC.Items.ItemMMCobble@30b8afce CONFLICT @ -72 item slot already occupied by TFC.Items.ItemIgExCobble@2d1e165f w hile adding TFC.Items.ItemIgExCobble@124ece1d CONFLICT @ -73 item slot already occupied by TFC.Items.ItemSedCobble@73bddb4e wh ile adding TFC.Items.ItemSedCobble@3589193f CONFLICT @ -74 item slot already occupied by TFC.Items.ItemIgInCobble@3bd8928e w hile adding TFC.Items.ItemIgInCobble@77dc754 CONFLICT @ -71 item slot already occupied by TFC.Items.ItemMMCobble@52a95fa3 whi le adding TFC.Items.ItemMMCobble@6dc5f0ba CONFLICT @ -60 item slot already occupied by dd@73aeff7d while adding TFC.Items. ItemTerraDirt@6607a2e0 CONFLICT @ -59 item slot already occupied by dd@7f565474 while adding TFC.Items. ItemTerraDirt@7cc2ccfb CONFLICT @ -66 item slot already occupied by dd@591fb2ba while adding TFC.Items. ItemTerraDirt@300eff0c CONFLICT @ -65 item slot already occupied by dd@288a857a while adding TFC.Items. ItemTerraDirt@1e412161 CONFLICT @ -64 item slot already occupied by dd@45f676cb while adding TFC.Items. ItemTerraDirt@37f12d4f CONFLICT @ -63 item slot already occupied by dd@3ad5ba3a while adding TFC.Items. ItemTerraDirt@25b55403 CONFLICT @ -62 item slot already occupied by dd@239ea44c while adding TFC.Items. ItemTerraDirt@4348bd9 CONFLICT @ -61 item slot already occupied by dd@15c955b7 while adding TFC.Items. ItemTerraDirt@551a6c8d 0 recipes 2012-07-18 21:28:26 [iNFO] Smart Moving allows client configurations 2012-07-18 21:28:26 [iNFO] Smart Moving uses communication protocol 2.0 2012-07-18 21:28:27 [iNFO] ##################################################### ## 2012-07-18 21:28:27 [iNFO] [Mod Update Manager] Dumping mod list. 2012-07-18 21:28:27 [iNFO] 2012-07-18 21:28:27 [iNFO] Minecraft Forge : Server Version = 3.3.8.152, Web Ver sion = 3.3.8.152 (true). 2012-07-18 21:28:27 [iNFO] Mod Update Manager : Server Version = 2.2, Web Versio n = 2.2 (true). 2012-07-18 21:28:27 [iNFO] 2012-07-18 21:28:27 [iNFO] Finished dumping mod list, 2 mods dumped. 2012-07-18 21:28:27 [iNFO] ##################################################### ## 2012-07-18 21:28:27 [iNFO] [Mod Update Manager] Thread Executed Check. 900 PlayerAPI: registered Smart Moving 2012-07-18 21:28:27 [iNFO] Forge Mod Loader load complete, 6 mods loaded 2012-07-18 21:28:27 [iNFO] Preparing level "Prospector's Paradise" 2012-07-18 21:28:27 [iNFO] Default game type: 0 -2506200094688779121 -2506200094688779121 -2506200094688779121 2012-07-18 21:28:27 [iNFO] Preparing start region for level 1 2012-07-18 21:28:27 [iNFO] Preparing start region for level 0 2012-07-18 21:28:28 [iNFO] Preparing start region for level -1 2012-07-18 21:28:28 [iNFO] Preparing spawn area: 52% 2012-07-18 21:28:28 [iNFO] Done (1.203s)! For help, type "help" or "?" 2012-07-18 21:28:38 [iNFO] NewClear83 [/127.0.0.1:53290] logged in with entity i d 162 at (-2.5, 149.59375, -2.5) 2012-07-18 21:28:38 [iNFO] NewClear83 joined with: [CodeChickenCore 0.5.3, Minec raftForge 3.3.8.152, NotEnoughItems 1.2.2.4, Smart Moving 9.4.2, TFC_Core Beta 2 Build 46b, UpdateManager by Vazkii. Version 2.2, ReiMinimap v3.2_04 [1.2.5], In vTweaks 1.41b (1.2.4)] Sending serverside check to: NewClear83 Server send seed: -2506200094688779121 Server send seed: -2506200094688779121 Server send seed: -2506200094688779121 Server send seed: -2506200094688779121 java.net.SocketException: Connection reset at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at java.io.FilterInputStream.read(Unknown Source) at lx.a(Packet.java:108) at qq.h(NetworkManager.java:236) at qq.c(NetworkManager.java:423) at zt.run(SourceFile:76) PlayerManager Successfully removed player NewClear83 PlayerManager Successfully removed player NewClear83 2012-07-18 21:28:43 [iNFO] NewClear83 lost connection: disconnect.genericReason The "@CONFLICT" errors above happened before, but never influenced the starting or stopping of the server, I think they are just Forge being Forge and being a bit over enthusiastic about the errors it displays, probably a setting I didn't tick/un-tick... The section in Bold above didn't happen before the latest patch (46B), it never stated that it was sending the data to the client before. Done a fair bit of modding of MC and chasing bugs from that crash report, never seen "java.lang.RuntimeException: java.lang.NoSuchFieldException: randomSeed" before and neither has Google when I tried about an hour ago . Oh and I didn't use Paste bin since I could actually get the crash log, usually only use that if the crash log auto closes (not happened in a while though), plus my Minecraft isn't installed where that *.bat would be looking, could have spent 10 mins fixing it, or just posted here, if you require a pastebin link, I'll do it though. Cheers, NewClear83