Wifi doesn't work properly topic

I got a problem with my 1+1.

For serveral reasons I disabeld the ssid (Name of the Network) for my home wifi, to First Connect the 1+1 it works, but if I disable the SSID again it doesn't Connect, my Note 3,Nexus 5/7 and my pc Connect correctly, only the 1+1 makes some trouble, currently on 44s Rooted, maybe a known issue?