You're lacking information like:
1) Operation System
2) Pre-compiled or self-compiled
3) revision of MCServer (or the url to the download page)
4) content of the webadmin.ini
just for reference, error 400 means "bad request" and is normally cause from a client (browser) sending a "bad requests" to the server.
http://www.checkupdown.com/status/E400.html
1) Operation System
2) Pre-compiled or self-compiled
3) revision of MCServer (or the url to the download page)
4) content of the webadmin.ini
just for reference, error 400 means "bad request" and is normally cause from a client (browser) sending a "bad requests" to the server.
http://www.checkupdown.com/status/E400.html