Thanks mate! It works! These users were using 3rd party VPN to bypass the guest wireless authentication are now blocked. ... View more

@ecejhe : the VPNs are under the category of "Proxy Avoidance and Anonymizers" which you did i saw. Create outbound deny rules for ports 500, 1701, 4500, and 1723 Check the troubleshooting doc https://documentation.meraki.com/MX/Client_VPN/Guided_Client_VPN_Troubleshooting#Resolving_NetBIOS_names_over_Client_VPN   Check this one for troubleshooting  https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/Blocking_Websites_with_Content_Filtering_and_Layer_7_Firewall_Rules   ... View more

It seems to base it on the MAC address. ... View more