Vu Duo2 network problem after openvix 6.6.003

[onni]

I updated my Vu duo2 to from 6.6.003 to 6.7.009 and there was problem to connect update server(Something about password). I updated from usb to 6.8.006 and wlan did not get ip address. Only back to 6.6.003 works fine. Does anybody else have this kind of network problem?