I purchased a replacement Duet 2-Ethernet for my Railcore II 300ZLT several months ago, and have just recently got around to replacing the board. When I try to connect to the printer through Duet Web Control, I get the display background but then get a JavaScript error - see attached screenshot.
How can I resolve this error? I have downloaded firmware updates, but do not know how to push them to the Duet through the web interface.