Currently, in order to get the most distance out of my wireless router, I have my wireless router in the living room. This is because my ps3 is in one room and my Imac is in another. my router is more or less in the middle of my ps3 and imac both of which i connect wirelessly to the internet. Since ive done this my signal upstairs is poor. So, can I use my Imac to boost the signal upstairs. My wireless router was plugged into my Imac beforehand and the signal upstairs was fine. but since ive had to move the router for my ps3 its further away from upstairs and the signal has dropped. short of moving the router back what else can i do