I have a standard Xi unit that works well with my Ipad & Iphone. I recently started using a Samsung tablet and the newer Skills ap connects with the Xi unit with no issues. I have an older version of the Skills app on my tablet and I would like to connect that to the Xi but the Xi unit will not connect to the tablet. I have removed the Apps and installed them individually and the older app will not connect but the newer app connects with no issues. I checked the ip address and all the parameters are the same between both Apps. Is there something I have missed or can the Xi unit itself block older versions? If so is there a way to reset the Xi unit to a default setting?