CIFS 1.40 is sending blank signatures when sending the Read Andx command. This appears to occur with win2k3 servers with multiple domains.
Created attachment 1815 [details]
Tcpdump of an attempt to read a file under 1.42
Created attachment 1816 [details]
Same read with 1.39
yes - you are correct. I have verified this and will work on a fix.
As this is so important I may push to mainline soon.