WinError 10065 with Python remote execution (Blender's Send to Unreal)

I am using the same setup (UE4 version, same Blender version, same Blender to UE version) to work on my project as some months ago. This time it does not work.

I have not done anything that should in any way break the system, so I’m only guessing and think its a Windows 10 issue… ? I don’t want to but should I just reinstall Windows?? I really want this to get working, I would pay for a solution at this point.

I’m getting really frustrated and don’t know what to do, I have reinstalled UE4, Blender and the blender addon, including many different versions. It just seems Blender can’t reach UE4 remotely even though it used to and should without problems.

When in Blender I use the “Send to Unreal” button, I get this error:

Python: Traceback (most recent call last):
  File "C:\Users\Ville\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\send2ue\", line 15, in execute
  File "C:\Users\Ville\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\send2ue\functions\", line 942, in send2ue
    result = unreal.import_asset(asset_data, properties)
  File "C:\Users\Ville\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\send2ue\functions\", line 54, in import_asset
  File "C:\Users\Ville\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\send2ue\dependencies\", line 83, in start
  File "C:\Users\Ville\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\send2ue\dependencies\", line 255, in open
  File "C:\Users\Ville\AppData\Roaming\Blender Foundation\Blender\3.0\scripts\addons\send2ue\dependencies\", line 283, in _init_broadcast_socket
    self._broadcast_socket.setsockopt(_socket.IPPROTO_IP, _socket.IP_ADD_MEMBERSHIP, _socket.inet_aton(
OSError: [WinError 10065] Vastaketoimintoa yritettiin palvelimessa, johon ei voi muodostaa yhteyttä

location: <unknown location>:-1

These are my Python settings in Unreal Engine:


I also have this toggled off:


“location: :-1” looks like BlenderGIS when gdal is not working. Install gdal: How to install GDAL · domlysz/BlenderGIS Wiki · GitHub