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.