[nabilbek]

It did find my PC kodi and everything went well.
I was trying yesterday to control my pi2 (openlec) with no luck ...
Automatic not finding anything, and manual setup gives an error
did anyone have troubles with it on openelec ?

[syncd]

This is probably a network issue.

Double check your configuration, specifically that you've enable all the necessary options in Kodi, are using the same ports on Kodi and the remote, and that there's no firewall on your network blocking those ports.

Take a look at the FAQ for details: http://forum.kodi.tv/showthread.php?tid=221700