If you don't want to change your DNS to other provider you can go to:
X:\Windows\System32\drivers\etc (X:\ being your hard drive where windows folder is located, open the file called hosts with Notepad and add this at the bottom, save and overwrite current one:
178.77.77.28 battlemaster.org forum.battlemaster.org bugs.battlemaster.org wiki.battlemaster.org maps.battlemaster.org If your hosts file is set to Read-Only just right click it>properties and uncheck Read-Only.