Can´t connect to SFTP disk from mac, but success on windows

Hi everyone, here is my problem. I´m running the last osmc/kodi 16.1 on a raspberry pi 2, all works perfect, the thing is that I want to be able to connect to my disk at home from anywhere, so I use the service “no-ip” to connect to my home disk. I can access all my services from outside (sickrage, couchpotato) and from different protocols (ssh on putty, SFTP on cyberduck) no problem at all.

So the thing is that I install kodi on my mothers notebook running windows 7 and I was able to connect to my home disk (outside my network) using SFTP protocol, no problem at all streaming movies at 720p.
Then I continue with my macbook air, same settings but for my surprise, I can´t access the disk.
This is the kodi.log (I replace my web address with xxxx)

`21:08:11 T:140735139086336 NOTICE: initialize done
21:08:11 T:140735139086336 NOTICE: Running the application…
21:08:11 T:140735139086336 NOTICE: starting zeroconf publishing
21:08:11 T:140735139086336 NOTICE: starting upnp client
21:08:11 T:123145315872768 NOTICE: ES: Starting UDP Event server on 127.0.0.1:9777
21:08:11 T:123145315872768 NOTICE: UDP: Listening on port 9777
21:08:22 T:123145312116736 ERROR: SFTPSession: Password present, but server does not support password authentication
21:08:22 T:123145312116736 ERROR: SFTPSession: No authentication method successful
21:08:22 T:123145312116736 ERROR: SFTPSession: Not connected, can’t list directory ‘media/external/tvshows/’
21:08:22 T:140735139086336 ERROR: GetDirectory - Error getting sftp://USERNAME:PASSWORD@xxxxx.no-ip.org:22/media/external/tvshows/
21:08:22 T:140735139086336 ERROR: CGUIMediaWindow::GetDirectory(sftp://USERNAME:PASSWORD@xxxxx.no-ip.org::22/media/external/tvshows/) failed
21:08:25 T:140735139086336 ERROR: Unable to activate the previous window
21:08:27 T:140735139086336 NOTICE: Storing total System Uptime
21:08:27 T:140735139086336 NOTICE: Saving settings

I have read a lot and I simply cant find the answer. I try on a windows pc from a friend and success, then on a friend macbook air and same problem… Its seems that the problem is from the apple devices.

Please help me, I´m kind of lost here.

Thank you, OSMC is awesome!
`