Hey folks, need some guidance. I have this setup on time warmer , the nighthawk is running the latest Merlin. I am having intermittent speed issues. I go from having 70+ download speed wireless for a week and then I can't get above 2mb without rebooting the sb6141. I have read elsewhere that the bandwidth setting might affect the speed and the fact that I have everything from an old HP laptop running XP to Macs and IPads running wireless. Optimally how should I have the router set? I'm pulling out my hair here and there isn't much left. Please help.. TIA