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Modify the following information in the Group Policy:
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1 for 1 days before the password can be changed, 0 means can change the password immediately, before the company has asked the user to change the password one day after the completion of this policy modification, you need to perform gpupdate/force on the CAS server to update Group Policy, Before updating, you can view the results of Group Policy application effectiveness by executing rsop.msc on the CAS server.
According to the testers ' feedback,
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As you can see, the Group Policy has not been synchronized, the default synchronization time is 24 hours, at this point we only need to execute Gpupdate/force on the CAS server, as shown in:
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Execute rsop.msc again to view the results of the Group Policy set build, as follows:
Change the password through OWA, prompting for a password that does not meet the minimum security requirements