I want to connect my Step 7 project through plcsim and nettoplc with WW Intouch

BUT, after a lot of tryies i got the solution for my case, Idk if will help everyone.

When u get "plcsim.... connected" and "client... disconnected", everything is working inside your computer (excluding ip configuration and whatever else related to connection) so make sure the ip address is like as described, in the same range/value etc.. after that if still don't working, go to you HMI software, you project and fix the IP and SUBNET accordingly to your project, make sure this is right, my problem was there, the HMI were set to MPI in the connections, ethernet is the right option obviously.

hope this helps