Why Did My Cisco IoT VLAN Stop Working After Upgrading to IOS XE 17.9.6?
Introduction – The Post-Upgrade VLAN FailureIf you recently upgraded your Cisco Catalyst 9300 or 9400 switch to Cisco IOS XE 17.9.6, only to discover that your IoT or 802.1X-authenticated devices can no longer obtain IP addresses or communicate on their VLANs, you are not alone.This is not a configuration error - it...