RB532 interconnect with SR9 issue

All:

I am trying to interconnect two RB532s, each with the following config:

  • Wlan1 802.11b/g configured as AP bridge on channel 10 on
    unit 2, channel 11 on unit 1
  • wlan2 Ubiquiti Superrange9 900mhz card configured as bridge
    on Unit1, and as station on unit2;
    freq on both set to 2437 (translates to 922mhz
    on the superrange)
  • Eth1 private network on both units
  • Eth2 public network on unit 1, NAT applied between static
    address on Eth2 and address range on eth1

DHCP server assigned to unit1 with range of 50 addresses.

For both, bridge group is setup for Wlan1, Wlan2, and Eth1, single
IP address assiged to the bridge group on each (unit 1 - 10.0.10.1, unit 2 - 10.0.10.2).

The problem I am having is related to IP connectivity over the 900mhz link – status on both sides indicates that the radios see each other and are connected using the same ssid. However, there is no IP connectivity over this link. I have tried setting discrete IPs to the Wlan2 interfaces and this did not seem to matter.

Any ideas what I am doing wrong?