I can't get my twin RRCs to function. Everything seems normal, both units start up properly and show solid green on both power and ethernet (both are now on the same network for this troubleshooting). When I press the power button on the IC head unit, the orange light comes on on the Control unit Aux/Mic socket, the alarm tone is on the speaker and nothing else happens. The status page on the control web interface shows the control panel as "Off". Any ideas???