"Server browser request error" On my XBox please fix this immediately. Thank you.

Since the last patch where they instituted the "hardcore no map" mode there has been a conflict with the server browser.  Before each search you much enter server filter and uncheck either "hard core" or "hard core no map" from the search options - having them both checked creates the error that you are experiencing.

Be advised that you have to do this each time you use the server browser because the options current re-check themselves and create the conflict every time you leave the server browser.