A SNMP sensor was created on a Nanostation2 in bridge mode with a fixed IP. After a few minutes the IP on the WAN router changed to the IP of the router connected downstream of the Nanostation2 but still showed the MAC address of the Nano. The fixed IP of the Nano was ignored. All connectivity was lost. Removing the sensor corrected the problem. The IP address went back to the correct one. What am I doing wrong?