Two days a go I experienced some issues that a android phone and a laptop didn't want to connect at all with the wifi, only after power off and power on the router. I didn't have time yet to further investigate.
I saw that in the latest source musl is updated from 1.1.15 to 1.1.16 which fixes a regression on MIPS routers I will to test with the latest source.
Would be helpful to mention which router you use 
Sorry I'm using a Netgear WNDR4300.