Great work, I'm back up and running with my telnet server. I did get a crash when doing a client available() or read() (not sure which) after having called a stop() on the client. Easy workaround in my code and probably shouldn't have been doing that anyway.

@facchinm this is important. the networking libraries in this core will not work correctly without this. the copy ability of instanced objects is a feature of the Arduino language. Imagine String would not be copyable in some Core.

@JAndrassy I think you should rebase this on master sincesetTimeout has been renamed insetSocketTimeout

@pennam thank you for the reminder. done