Question : Active Directory - Several Accounts Locked Out

This week I've had 3 different users get locked out of their accounts in active directory.  All have were asked to change their passwords, but I have a hard time believing that they all messed up and got locked out.  Is there any other reason that so many accounts would get locked out in the same week?  Could the solution be as simple as resetting my domain controller?

Answer : Active Directory - Several Accounts Locked Out

If your users are 'mapping' to network shares or using their network accounts to run any Services or Functions, they may have to manually re-connect or re-configure (with new password).

Vic