STEP 2: Manually configure an IP address on your computer of 192.168.1.15 and connect the computer via Ethernet to the WRE adapter.
STEP 3: Press the WPS button on the WRE and do not release it. Then power ON the WRE.
STEP 4: Wait about 3 seconds until the signal LED is stable (ON). Now the WRE's IP address is 192.168.1.6 and ready for FW recovery.
STEP 5: Use a TFTP client to PUT the firmware file in the WRE. After the firmware is uploaded, the WRE will perform the upgrade automatically.