Exchange 2010 CAS Array not working, Outlook 2007 won't connect.

I have a total of 4 exchange 2010 servers.  Two have Mailbox role installed with a DAG configured, and two have the CAS/HUB roles installed on them.  I created a CAS Array, but my outlook 2007 won't connect.  When I look at the settings in outlook its pointed the the CAS Array name, but the mailbox won't connect.  Any Ideas?  Thanks.
When I do a "get-clientaccessarray", the array shows up with my two CAS Servers so I'm not sure what I'm doing wrong.
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Daft the CAS Array Name registered in DNS?

(never used a CAS array, but it's the only thing I can think of - sorry)
Crossroads305Author Commented:
yes, it is registerd in DNS
Satya PathakLead Technical ConsultantCommented:

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Crossroads305Author Commented:
I reconfigured WNLB and everything worked.  Not sure what caused the problem.
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