[Dopedangel]

I am facing a weird problem where the portable install of calibre companion that I am using I am unable to connect to calibre companion. It was just not working one day and no matter what I tried I could not get it to work. As I wanted to try calibre portable beta I installed it and found that the wireless connection was working so happily I updated my original install but the wireless is not working. So I have 2 installs of calibre portable 1 with working wireless device connection the other without.
Can anyone tell me what file should I delete in my settings folder that might be causing the problem as I don't want to loose all my settings though that would be the last resort if I cant fix it.