Okay, it works now.Thank you so much @Flavio Miranda, I really appreciate your help.I'm also facing some problems with doing these 2 steps, so could you please guide me on how to perform them.8.Ping the Gateway RouterPing your network's gateway route...

No, I don't succeed, the thing is per my project's requirements I need to create scenarios where I move packets all around the network.

Thank you for your response.I opened the file that you attached and I still get the same problem the packets are not arriving at the PCs and I get an x on all envelopes.

we also tried this but the packets are still not arriving.