When trying to open EC2 with Putty or transfer file with Filezilla SERVER REFUSE OUR KEY

Question

Suddenly from one hour to the another this message began appearing when using FZ. I also noticed that the EC2 was not accepting creating a Session with php.

As noted this just happened. I have no idea what is going on. I need help since this is running a client application.

Answer

Given that this is a production issue I'd strongly recommend that you create a support ticket to get assistance. This forum is best-effort and we don't have information about your environment and what is running there.

That said: Have you tried accessing the instance using SSH? You might also try the EC2 Serial Console to see what is happening on the instance - I'm assuming it is Linux but you haven't said.

When trying to open EC2 with Putty or transfer file with Filezilla SERVER REFUSE OUR KEY

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