Sorry for the latest response.
If you are still facing the same issue then please provide us the below details to investigate this issue further.
Upload the latest zip of DotNetAgent folder to the following location https://appdynamics.egnyte.com/ul/2TVrdOrMls
Screen capture of the Test Controller connection from the AppDynamics Agent Configuration wizard.
Screen capture of the Telnet <Controller Host> <Port> command output
Screen capture of the Internet Explorer browing the Controller from the problematic Agent server.
Screen capture of the tracert <Controller Host> command.
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