And find and connect a correct Rx device with the Tx device.
Go to Web UI
[Config-> Wireless->Search Rx]
and find and connect Rx with Tx.
If Password input box opens, enter the passphrase of Rx.
7.4 How to set up WDS on Web UI screen
7.4.1 On the Rx1 device’s Web UI, enter the Rx2’s MAC Address (uppercase) and save it.