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Blackberry causing network account to lock after a password change

We are in the testing phase to use policies to change our network passwords every 90 days.  This is going fine except that  a blackberry that we tested with is causing an almost immediate account lockout after we change the password on their blackberry to match the new network password.  The blackberry is using OWA to connect  it is not connecting straight to our exchange server.  The blackberry can't authenticate afterwards.  I am looking at auditing on the DC and can see where the server sees 5 immediate unsuccessful logon attempts from the blackberry and then locks out the account.  
Is there a workaround this problem?  We've only tested on one blackberry and had this problem.  We tested a treo and were able to change the password just fine without locking the network account.
Any ideas?
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Please clarify: the Blackberry handheld is connecting via OWA or through a Blackberry Enterprise Server?
MDSiudakAuthor Commented:
The blackberry is connecting through OWA only.  Thanks.
If the password is not typed correctly in your blackberry you will cause your account to lockout after unsuccessful login attempts.  This happens to a lot of our users during password change windows ... they change their passwords on their desktops but forget to do so on their mobile devices and then they lock themselves out.

This just requires the users to be aware of their passwords on their mobile devices and they should update them both at the same time when the 90 days expires.  It is nothing but a learning curve.
MDSiudakAuthor Commented:
OK, thanks for the helpful advice!
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