IPad loose communications when using both AIrport Extreme and express

Hi gang,

I'm trying to solve a problem that I've got with my iPad for quite a while now

When I use it with my Airport extreme only I've got no problem at all and I can move around the house and the connection will stay connected.

But when I set up my airport express to extend my network and when I move around the house with my iPad it keeps losing connection all the time

It really looks like it's dropping its connection when it's moving from one airport to the other

Anyone else has this kind of problem?

Thanks