Fully working network stopped working on Cisco packet tracer

[m.gianni072]

Hi, I just finished setting up this network which took hours of my time on Cisco packet tracer. But now out of nowhere nodes cannot connect/ping to other nodes on other networks. I cannot find a solution. Please help. 

[Luke Oxley]

[@m.gianni072@gmail.com],

You are going to have to be a little more specific than this. Please share a full network diagram with IP addressing included and let me know what subnets cannot reach each other.

Kind regards,

Luke

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[Georg Pauwen]

Hello,

since the Cisco Packet Tracer is just simulating networks, any problems you encounter are related to your underlying platform. Are you running the Packet Tracer on a Windows machine ? Check Task Manager to verify that you have sufficient system resources such as memory available. Also, make sure you run Packet Tracer as Administrator.

In your specific case, your only option is to restart the program. Once you have, check File --? Recent Files for saved configurations.