Yucca86

Just had the time to test again with full mod list that I have accumulated. Updated few mods and added some, did fresh configs etc. Still IOExpection 131072 bytes extra in packet 63. Earlier I did a clear install of Minecraft and installed server to a cleared folder but those tricks did not help. Here are the logs from server and client. And the full zip of my mods folder. Hope this helps a little. https://www.dropbox.com/s/ap7qcn7b5315i2p/fml-client-latest.log https://www.dropbox.com/s/0w4vammweofzya8/fml-server-latest.log https://www.dropbox.com/s/lo6ei2ady1tgyei/mods.zip

Sorry about slow answering to this topic, but my 6 months old kid takes up almost all the free time. Earlier I tested cutting the mods to 50, then the byte count reduced to 65536 from the 131072. Then I started to remove mods, but got down to 45 until my kid woke up. Still the same error. I have pure Forge server and use the normal launcher, I even tried tampering with my routers settings couple days ago when I tried to get my server running again in 1.7.10. Here is a link to my dropbox containing my mods folder. https://www.dropbox.com/s/lo6ei2ady1tgyei/mods.zip I'll see if I have time to send my logs. But basically those are the same as the topics author has posted. IOException 65536 bytes in packet 63 and after that the logs display random Bad Packet IDs Ninja edit: That is the mods folder from my testing sessions... So there are more mods in the pack I have been using earlier when the errors started. I can post the full modpack if needed and try to provide my logs too.

I started to have the same problem, had the same 65536 bytes extra in packet 63 in Forge 1172 and when I updated to 1180 the byte count doubled to 131072 in the same packet. I have 80 mods and tried the same thing of eliminating the the faulty mod, but had the same outcome as you. Single player world loads fine with same mods, when I start my server and try to join it with either of my two computers, the following packet error pops up.