[Samba] A device attached to the system is not functioning(samba 3.6.3 + OpenLDAP)

[Mike]

Today's morning I got "*Domain not available*" on all windows xp 
machines(domain logon working only for users with cached profiles)
I tried to rejoin machine to domain, but when I try to join, error "*A 
device attached to the system is not functioning*" occurs
Here is error log when I tried to join http://pastebin.com/MCHKMjmL
"*Re-using invalid record*" looks suspicious, but I don't understand how 
its related to my problem.
I'm using samba 3.6.3 with OpenLDAP

My samba config: http://pastebin.com/BKLVBeWv

Also, I done absolutely nothing to server before error happens(just 
reboot 2 days ago)

-- 
С уважением,
Майоров Михаил.