Script doesn’t work – E14 bug

When you follow the article

Exchange Test CAS Connectivity user gets locked out when using Exchange 2010 MP

I followed this article.  After running the script New-TestCasConnectivityUser.PS1, it locks the CAS user account created by running the script gets locked out.

After you make changes as recommended in the article, will break the outlook anywhere in E14.  I faced this problem in two different organization.

It appears to be a bug!!! Any body has a solution?