We are deploying CPE510'2 for this environment. We have 3 buildings (each about 200 yards from each other). Building 1 has incoming internet. There are 2 CPE510's in AP mode. Building 2 & 3 are in opposite directions from Building 1. Buildings 2 & 3 havea CPE510 in client mode. The link from 1 to 2 works fine and has been for about 2 years. I am trying to add the same config to building 3. I can see the CPE510 in AP mode at building 1 from building 3 in the survey and I connect to it but I cannot ping the CPE510 IP address from either direction. All units are in the same ip address range. 192.168.1.xxx. Any thoughts on a fix?