Hi, I am trying to set up a system for our company, but the phones are not listed on the management console, and DHCP option66 nor manual provisioning work. We have a 3CX Pro V15 installed on a virtual Windows 10 Pro machine. The DHCP server is a Windows Small Buseiness Server The phone I am trying to provision is Yealink T21P E2. I can open the webserver of the phone from the Windows10 server, so the connection looks fine, I can ping it as well. I tried to copy the provisioning link into the webserver appropriate field, but did not help. I also tried to add Otion66 into the DHCP, but no results. The phone and extension is set up in the 3CX system. The phone is on my desk, connecting to the same switch as my laptop, and the 3CX client on my laptop is provisioned and working fine. I've tried so many things, but am stuck now. Thanks for any help in advance.