# File lib/rbot/ircbot.rb, line 885
  def stop_server_pings
    @last_ping = nil
    # stop existing timers if running
    unless @ping_timer.nil?
      @timer.remove @ping_timer
      @ping_timer = nil
    end
    unless @pong_timer.nil?
      @timer.remove @pong_timer
      @pong_timer = nil
    end
  end