Gents,
maybe a heads-up since I do not know your installation routine and it did not work for me until I edited SimConnect.xml manually (maybe the installer does not overwrite an existing file, which generally is good). In my SimConnect file there are already multiple ports opened for a remote installation of ActiveSky (500 and 6811). The relevant port for the CLS devices seems to be 15050. Until I added the lines below I was not able to connect the device to P3D.
<SimConnect.Comm>
<Disabled>False</Disabled>
<Protocol>IPv4</Protocol>
<Scope>global</Scope>
<MaxClients>64</MaxClients>
<Address>INSERT YOUR LOCAL IP ADRESS OR SERVER NAME</Address>
<Port>15050</Port>
</SimConnect.Comm>
</SimBase.Document>
Regards,
Dominik