But look at those powerline ethernet if you must. Link to ...
I have cable with a wireless router and would like to run a hardwired Ethernet through my phone lines (i think they are cat5). anyways they are daisy chained from my living room to kitchen then to my office. I was wondering if it was at all possible to convert them so that i can get a hardwired to my living room. this means i would have to convert my office then go through kitchen then to living room. any help would be great. I have comcast internet and dish network tv so i can not just move my modem to my living room. any help would be great.