ok, wanted to make sure the router isn't bad. the walls may really be a problem, cause there are some thick walls and there is 4-5 wifi signals when I search for mine. I'll try your suggestions...

Model : TL-WR841HP Hardware Version : WR841HP v3 00000000 Firmware Version : 3.16.9 Build 160612 Rel.63618n ISP : I just bought this router today and description says: "range up to 10000 square...