Samba: Error 2: Share... Connection timed out

[damianoloan]

Basic Info:
XBian 1.0a5
Not overclocked
1.0A power supply
OEM wired keyboard (functions correctly)
Wired connection
Sandisk 16GB SD card
Log file: http://pastebin.com/22dMCVPR
smb.conf: http://pastebin.com/tpsWLJs9
Unresolved XBMC forum discussion: forum.xbmc.org/showthread.php?tid=157621

Hi, I've been having problems with Samba for weeks. Almost always, browsing through SMB gives an Error 2: Share Not Available message. Sometimes, I can see the R.Pi almost never my Samba server, an Asus 1225C running Linux Mint 13 (same problem with Ubuntu 12.04 before), and I can never access the share. Using Add Network Location gives a Connection timed out message, see log file. Using Raspbmc, I added the share files to sources.xml, still no connection. I've also tried OpenElec, and I'm now back to XBian, the first I tried incidentally - nice to see the progress.

But still no Samba shares - any ideas?