WIFI on Musicbox?

I have tryed to start wifi on my Musicbox but it doesnt work.
“Settinhs” “Network” where I supplyed the ssid and password, “Restart” but my Pi didnt find any network.
When I plug in the network cable it starts direct.

WHAT TO DO???

When I use my PI with NOOBS or a later version of OS the wifi is easy to connect and it works good.

I have used my Musicbox/Pi as a internetradio for a couple of years on a network cable and its the best internetradio I have had.

Arlovsjan.