This is completly normel. No v4s can connect with v5s. v5s can only connect to other v5s unlike the other ones that can connect to every other version. Its okay because it has no problom at all. I think that this is because v5s have familys unlike the other versions and v5s have different connection games. Try connecting your v5 to another v5 and your v4 to any version exept v5.