You should consider making OnSentry full online. We've been receiving many complaints from the customer, when using two or more CipherLab unis in the same location, due to its offline development; for example, if a contractor sign-in through an Access Point and, in a short time he/she try to sign-out through the other AP, the OnSentry set or placed in that area registers another sign-in for the same contractor, then, the security guy try to update database manually, but, is the Db is too heavy, the unit takes a long time to get Db updated.