I'm unable to get an SR made using command prompt or using XenCenter's interface dialogs.
Here is the command I'm issuing:
xe-mount-iso-sr //<mycomputer.domain.controller>/iso_share -o username=<my_domain_username>,password=<my_domain_password,domainname=ucads,sec=ntlmv2
Here is the response from the command:
=======================
CIFS VFS: No response for cmd 114 mid 45629
Status code returned 0xc000006d NT_STATUS_LOGON_FAILURE
CIFS VFS: Send error in SessSetup = -13
CIFS VFS: cifs_mount failed w/return code = -13
INFO: task cdrommon:6932 blocked for more than 120 seconds.
Also, I tried to do a SMB:///iso_share with same credentials on my MacBook and it connected just fine... :-\