(Error code 2d0c61)
This error originated from one of the following locations within the iPXE source code:
DEBUG=httpcore
(Please edit this page to include any of your own useful hints and tips for fixing this error.)
This error indicates that the web server returned an HTTP status code of 404 (Not Found).
Note that the same error can occur if the automatic TLS certificate validator does not find a cross-signing certificate on http://ca.ipxe.org/ for the TLS certificate of the server you're trying to connect to.
Things to try: