Exclamation Tablet Baoxue 7- problam with range wifi

Hi Everybody
I have the tablet Baoxue 7 and I have a problem with my range network on wifi mode.
my build - alps.ics.p.v2.26
there anybody here that has the same tablet as me.
I want to now if is hardware problem or maybe that ROM.

thank you very much
for you helping
ohad