Solved: Invalid serial number for 3ds Max 2020 - Autodesk Community - Subscription, Installation and Licensing
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![Unable to use Vray since updating Windows 10 yesterday. Getting error no connection could be made because target machine actively refused it. Cannot connect to localhost:30304 as that is refusing to connect. Unable to use Vray since updating Windows 10 yesterday. Getting error no connection could be made because target machine actively refused it. Cannot connect to localhost:30304 as that is refusing to connect.](https://preview.redd.it/ox3opytpwam61.png?width=640&crop=smart&auto=webp&s=cbfb11d24edb94d7480b4a5337bee71c55bbd817)
Unable to use Vray since updating Windows 10 yesterday. Getting error no connection could be made because target machine actively refused it. Cannot connect to localhost:30304 as that is refusing to connect.
![Microsoft Visual C++ Runtime Library & 3ds Max application has stopped working - Autodesk Community - 3ds Max Microsoft Visual C++ Runtime Library & 3ds Max application has stopped working - Autodesk Community - 3ds Max](https://forums.autodesk.com/autodesk/attachments/autodesk/area-b200/108205/2/3ds%20Max%20application%20has%20stopped%20workingg.jpg)