Endpoint Mananger Remote Reboot of Phones Unsuccessful

I am using FreePBX Distro which runs Asterisk I am using Cisco SPA508G phones. Overall the system runs perfectly.

One thing that is not working is remote reboot of phones from the Endpoint Manager. If I try to reboot one phone or all phones, nothing happens. Although I believe this feature did work at some point. Perhaps a distro upgrade or module upgrade broke it.

How do I start troubleshooting this issue?


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