Default My S2 picks up 13 networks, both my S4s pick up 1 :/

I'm getting 13 wi-fi Networks on my S2 (GT-I9100) but only 1 on my S4s (GT-I9505) it's a big difference, it's the same on both S4s I've tested, I tried turning off the wi-fi battery saving mode in the service mode, but still picking up just one network intermittently, I'm on 4.4.2, any ideas?