Troubleshooting Dyamics AX Error No Devices found

Issue:

Recently on one of the client machine, this error message "No Devices found" started popping up while the AX Client is loaded.

Solution:  
This is caused by an unregistered ocx file on the client.

To fix this you will need to register the smmPhone.ocx located in C:\Program Files\Microsoft Dynamics AX\40\Client\Bin folder using regsvr32

Command line is:

regsvr32 C:\Program Files\Microsoft Dynamics AX\40\Client\Bin\smmPhone.ocx

but  had to go to a cmd window, cd to the C:\Program Files\Microsoft Dynamics AX\40\Client\Bin folder and then run

regsvr32 .\smmPhone.ocx

Restart the box.