Windows Arduino USB config (Error Unknown error)

Hello guys :slight_smile:
I got my local server running and i can connect to it via the app. How do i have to config the blynk-ser.bat so that my arduino nano can connect to the server via usb?

I tried to change the SRV_ADDR to my local IP Adress but that didnt work (Error Unkown error (10061). Havent find a solution at the internet for Win. altough there was the same question with no helpfull answer.

Can anybody help me?

Best wishes,

Works now, after a pc restart it began to work