D-Link DIR 857 problem and powerline question

[MetaDrow]

I bought a DIR 857 a week or 2 ago and everything works fine except my android devices, check the settings, built-in router from modem is off, open space usually within 5 meters close to the router. I would reboot the thing and that would work for like a day and I wasted an hour with D-link support already knowing everything they told me. Does any body know why and how i can fix this problem or should i just get a different router?

If the option is to get a new router, would D-link's powerline work with the ASUS RT-N66R. That is the router i was thinking of getting as a backup option.

[amas]

iirc, when I was setting my router up, hiding my SSID made all of my families phones unable to connect to the router for w/e reason. How old are your Android devices?