When you put a redstone wire next to another one to connect it, the direction of it is wrong.
E.g.: When you put a redstone wire facing to the North/South it faces to the East/West.
Environment
OS: Windows 7
OS Versión: 6.1
OS awt: x86
Java Versión: 1.7.0_51
Java arch data model: 32
Duplicate of MC-53384