We use NPS. I have the radius session timeout set for the policy. I have left the device disconnected from the phone for hours more than the timeout but when I connect a different PC, the switch ignores the request. This is the timeout I have used in the past to force periodic reauth. I have found a setting on the polycom phones that seems to resolve the issue but we use a UCaaS service and I cannot modify anything on their provisioning servers so I have no way to set it globally. I was hoping there is some other alternative. Cisco/Meraki's 802.1x options are a lot more limiting than with our old procurves. On them, we could have multiple authenticated clients per port and still support a guest vlan.
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