Strange Error Message When Joining my tekkit server

[vincentau9]

I am currently running my server on mcprohosting and with tekkit. However, when i try to join i get a :

"09.04 19:50:04 [server] INFO vincentau9 [/24.205.161.81:51828] lost connection

09.04 19:50:04 [server] INFO Disconnecting vincentau9 [/24.205.161.81:51828]: Outdated client!

09.04 19:50:04 [server] INFO at zt.run(SourceFile:76)

09.04 19:50:04 [server] INFO at qq.c(SourceFile:9)

09.04 19:50:04 [server] INFO at qq.h(SourceFile:189)

09.04 19:50:04 [server] INFO at lx.a(SourceFile:149)

09.04 19:50:04 [server] INFO java.io.IOException: Bad packet id 71

"

My client and server are currently up to date so i have no idea what happened.

[nak0604]

I have the same problem. Fresh new install of tekkit server 2.1.1 and 0.5.4.9 client and still get outdated client.

[thecrowcook]

i am having the same issue on my server. i have a 2.1.1 server and a 0.5.4.9 client and noone is able to get on but i started a server on my own computer to test this issue and people were able to get on it just fine

[Mr Munch]

How the hell do i install Tekkit for mc pro hosting i just cant do it :(

[Cscoop]

Me too mr munch! i've been trying forever! do they just tell you to make tekkit.jar to custom.jar?