Thank you for your tip, but we have already tried this and the problem only exists with the EAP660 HD V2 (we have 5 of these). We have also tested EAP 660 HD V1, with these it also works without any...

Hello everyone, We are experiencing an issue with our new EAP660 HD V2 Access Points: When an SSID with a VLAN is set up on these access points, the speed drops to 0.1 Mbps or disconnects...