1. What OS are you using (Brand and version - Ex. Windows XP SP3)? Windows 7 Pro SP1 2. What architecture is the OS you are running (x64 or x86)? x64 3. What version and architecture is your java install? 4. Are you running any wrappers? McMyAdmin, mcadmin, Hamachi, etc? None 5. What build of CraftBukkit are you running? git-Bukkit-1.1-R2-b18 40jnks 6. What command are you using to run your CraftBukkit server? 7. What plugins are you running? AntiCreeper AutoCraft ChestShop CreativeGates iConomy LagMeter MobArena MoneyDrop Register SimpleChestLock 8. What error are you getting (post your server.log file)? 9. What have you tried already? Re-installing Java. (Problem persists.) Starting new bukkit server from scratch. (Problem persists.) Changing Router Settings. (The settings are rrelevant due to next troubleshooting method.)(Problem persists.) Plugging directly into the modem. (Problem persists.) Installing Bukkit on orher operating systems and machines: Ubuntu 10.10 x86, Windows 7 Home Premium x64 (Problem persists.) Running with java 6 update 30 instead of java 7 (Problem persists.) Removing all plugins and running the server. (Problem persists.) Playing on LAN. (Problem persists.) Switching to 1185 (1.81) - The issue becomes nonexistent, but this is hardly a fix. 10. Run the vanilla Minecraft server (no Craftbukkit). Does the error/problem still occur? No 11. Remove all your plugins and try with just CraftBukkit. Does the error/problem still occur? Yes Other Details: If information I have listed above is not enough to solve this error or to come to an conclusion as to why it is happening; please let me know. As I listed under question 9, even users on LAN still receive the end of stream error. Switching back to craftbukkit 1185 seems to fix the issue but, I would rather not run an out of date server. I know it is not related to my machine or router; as I have tried without both. I work in a tech support so I would like to think that my troubleshooting skills are not awful; there must be something I am missing here or maybe even just doing plain wrong. Also, when looking at minecraft's players list whomever joins second and so on shows a low ping on the first players connection list. While all other players on their connections list show the a perfect ping. (Note it only does this on bukkit servers.)Not sure if that has anything to do with the endofStream errors but it may be relevant. The following screens are examples of above. (This is online play but LAN has the same results) Player One's Screen: http://i.imgur.com/j823f.png Player Two's Screen: http://i.imgur.com/oSU9B.jpg System Specs: CPU: Phenom II x 4 3.4 GHZ RAM: 4GB Connection Speed: Download - 15. 35 Mb/s Upload - 3.18 Mb/s Amount of Players - 2 to 4 Just updated to 1.1-R3, still receiving endOfStream errors. I have been troubleshooting this for weeks and reverting back to 1.81 seems to be the only fix that I can find. Any ideas? EDIT by Moderator: merged posts, please use the edit button instead of double posting.