BFV not starting (LSX Server? Port 3216)

Found the solution! :D :D

My hypothesis above was correct, the reason bfv isn't working is because EA Desktop (or Origin I presume) is not able to start the LSX Server on port 3216.

I realized that I couldn't listen on port 3216 myself either with netcat. So I found out that Windows 10 has Port Exclusion Ranges. 
These are ranges of TCP ports that cannot be used by any process, even if that process is running as administrator.

Run the following command in CMD and see if there is a range blocking port 3216:

C:\>netsh int ip show excludedportrange protocol=tcp

Protocol tcp Port Exclusion Ranges

Start Port    End Port
----------    --------
      1085        1184
      1185        1284
      1285        1384
      1385        1484
      1485        1584
      1585        1684
      1685        1784
      1785        1884
      1988        2087
      2088        2187
      2188        2287
      2288        2387
      2388        2487
      2488        2587
      2588        2687
      2688        2787
      2991        3090
      3091        3190
      3191        3290  <-- This is the culprit!
      3390        3489
      3490        3589
      3590        3689
      3690        3789
      3790        3889
      3903        4002
      4003        4102
      4103        4202
      4203        4302
      4303        4402
      4403        4502
      4503        4602
      4700        4799
      5216        5315
      5358        5457
      5458        5557
      5558        5657
     50000       50059     *

* - Administered port exclusions.

I tried to delete this port range, so that EA Desktop can use it, but I was blocked:

C:\> netsh interface ipv4 delete excludedportrange protocol=tcp startport=3191 numberofports=100
Access is denied.

After some googling I found out that these Port Ranges can be created by Hyper-V and virtual network adapters (vmware, virtualbox, vpn, whatever).
In my case it was a virtual network adapter!

Go to your network adapter list Control Panel\Network and Internet\Network Connections and disable all your virtual network adapters! (Hyper-V, TAP-Windows, VMware, etc).

I checked my list of excluded ports again, and 3216 was no longer being blocked by any ranges! I restarted EA Desktop and BFV is now working!

Thanks EA for adding logging to the EA Desktop client. Origin didn't provide this type of detail and that way I would never have figured this out.

Cheers. Hopefully it helps others out there 🙂