A working certificate has been manually produced as a workaround whilst we look into why the auto-update cert process generates a cert which Poly phones are not happy with.

Poly and Yealink handsets are currently not able to download configuration files from our provisioning server. Handset provisioning is failing by design, due to an issue with a recently auto-generated certificate.
Engineers are working on a fix - with an estimated restore target of midnight on Monday, 17 Jan.

Please contact Simtex support - support@simtex.com.au if you have any queries or have a device which you need to bring online urgently.