I would like to activate the
WolframKernel to use Mathematica in Python. Although it worked the first time, later the error
Failed to communicate with kernel: C:Program FilesWolfram ResearchMathematica12.1WolframKernel.exe.
appeared. When I open the
WolframKernel in this folder, it asks for activation. Maybe this is the reason for the error.
Unfortunately, I don’t know, what to enter in the dialog
Mathematica 12.1.1 Kernel for Microsoft Windows (64-bit) Copyright 1988-2020 Wolfram Research, Inc. Mathematica 12.1.1 Kernel cannot find a valid password. For automatic Web Activation enter your activation key (enter return to skip Web Activation):
I tried the activation keys that I got in the Wolfram User Account, but they don’t work.