I cant seem to get a yealink phone to auto provision for the life of me. I can manually enter info into the phone account and get it to register. I created the device under the URL for the domain and have enabled Provisioning in default settings as well as user and pass. But the phone will not provision. Also when I try to download the file from device page i get a 404 error. If i press provision from device the phone shows its updating but nothing ever changes on the phone. Im lost.