There is no way to run cable to that building ,
For everybody willing to help me now , I started making my pfsense box
So here is where Im at , I have old pc that I was using for a while as my "router" it has wifi card of wich antena is on roof of my building and it gets nice signal , its runing windows 7 and I just enabled sharing internet on the tab and that works I can conect other PCs to it and PCs just se at as gateway and it works .
My pfsense box is old amd 1.8GHZ 2GB RAM 60gb SSD , MOBO has 2 internet ports , I installed pfsense on SSD heres my problem , I pluged the cable from my pc that has windows and is sharing internet at part where it asks me to detect wan it strugles , it didnt detected so I manualy typed in the port ID .
I got to the pfsense home screen and went to asign interfaces , When I did that it says configuring wan succesful but at home screen it dosent have ip addres of pc thats sharing wifi for WAN , its not working since when I trie to ping anything it just says it cant do it , when I went to configure LAN it also didnt auto-detect so I put in manualy ID of port and gave it IP and everything , I pluged that in third pc and went to ipconfig and there it was IP was showing corectly 192.168.1.15 but when I went into chrome and typed
http://192.168.1.15 how pfsense told me it wont open the freaking GUI , I tried unpluging the WAN port and just leaving the LAN open and that also didnt work , by my logic the LAN should be enough for me to be able to open gui in chrome , also on third pc I went and made shure that subnetmask are the same on pfsense box and pc and again it didnt work .
Im not giving up yet , is it posible to open web gui without conecting to internet or do I have to configure wan in order for it to work , I dont se why that would be case .