Complicated Router And Internet Disconnection

Here is my internet setup:Blue Zoom ISP (Satellite) >>> Their Modem >>> Sony Viao Desktop >>> Linksys EA4500 Router,I have a metal garage with an apartment in it about 30 feet from the house. I cannot get any kind of wireless internet into the apartment because it is made of metal. I barely have cell phone signal.So, in order to get internet into the apartment I have a Ubiquiti Nano Bridge mounted about three feet off the ground right outside of the apartment which runs a CAT 5 Ethernet cable inside the apartment into a Linksys EA2500 Router.