The Mac/OSX may have the stale mount points still in place; they need to be unmounted so that fresh mounts can take their place. This does not happen automagically.

The GUI way

Try the "eject" icon next to the share in finder, then wait for it to reconnect (or force it with Finder->Go->Connect to Server)

If that doesn't work try the commandline...

The command-line way

$ mount
//GUEST:@OPENELEC._smb._tcp.local/videos on /Volumes/videos (smbfs, nodev, nosuid, noowners, mounted by user)
$ umount /Volumes/videos

Now try connecting with Finder again.

In my case I'm trying to connect to a remote Samba share, which has been reconfigured and restarted.

OS X may have stale mount points; unmount the remote shares so that fresh mount points can take their place. This does not happen automagically.

The GUI way

Try the "eject" icon next to the share in finder, then wait for it to reconnect (or force it with Finder->Go->Connect to Server)

If that doesn't work try the commandline...

The command-line way

Find the existing, probably stale, mounts with mount, then umount them like this...

$ mount
//GUEST:@OPENELEC._smb._tcp.local/videos on /Volumes/videos (smbfs, nodev, nosuid, noowners, mounted by user)
$ umount /Volumes/videos

Now try connecting with Finder again.

In my case I'm trying to connect to a remote Samba share, which has been reconfigured and restarted.