2 Zeroshell and subnets

Hi,
I have 2 sites connecting bya wireless bridge. Let’s say SiteA (Main) and SiteB(remote). I installed 2 zeroshell dhcp on each site. My problem is that my internet connection is on site A. Somehow, some Wifi AP is trying to access the dhcp server at SiteB which would timeout and never out to the internet.

I then tried subnetting the two sites to:

SiteA: 192.168.1.0/255.255.255.224
SiteB: 192.168.132/255.255.255.224

One DHCP in each site. Somehow it still doing the same thing.

One DHCP is running release 3.5.0 and the other is 3.4.0.
Problem:
1) My mobile s(mainly) Android and PC would try to grab the IP from siteB.
2) Is there a bug on 3.4.0?

I have a mixed of access points from different vendor: 3COM, Dlink, Cisco.

I welcome suggestion…

thanks
Hugh