DAgent not displaying in System Tray on client computer

I am having an issue where my computers that I have installed the DAgent on are not displaying the DAgent icon in the system tray,

I can see the process running on the task manager but I cannot send any commands to the client through the console. I always get a sending WOL message and the job/task does not get past this point.

I have ports 401,402 udp and tcp opened on the server (2012 R2 Standard) and on the client (Win 7 pro X86)

Any suggestions or fixes regarding this?