Solved how to remove all

Use the registry file that comes with the patch and contains default gateways and use any gateway editor to remove our gateway. Other than that, you'll need to reinstall the game using latest blizzard installer and for the future, use search button as this has been answered before. Uninstalling the game includes removing proper registry files too not just deleting the diablo2 folder, additionally we provide support on how to connect to this server, not to other servers.