AD user not recognized when using domain

[GoogleCodeExporter]

What steps will reproduce the problem?
1. server.connect("vmhost","DOMAIN\user","passsword")

What is the expected output? What do you see instead?
No expected output.
pysphere.resources.vi_exception.VIApiException: [InvalidLoginFault]: Cannot 
complete login due to an incorrect user name or password.


What version of the product are you using? On what operating system?
0.1.8 on CentOS 6 64 and Cygwin64, currently the VMWare version is 5.1


Please provide any additional information below.
pysphere works well with non DOMAIN accounts, tested on 5.1 and 4.1 versions of 
VMWare

Original issue reported on code.google.com by [email protected] on 1 Oct 2013 at 9:55