Configuring a WDS Bridge
In the Web-Based Configuration Utility, click on the Advanced tab, select Wireless Config, and choose Basic. Change the wireless channel to match the one you set for the first AirStation. Change Framebursting from 125 High Speed Mode to Framebursting or Do not use (whichever you chose for the first AirStation). For easy roaming, you may change the SSID to match the current SSID setting of the other AirStation. Click Apply. Your AirStation will reboot in 30-60 seconds.
Now, under Wireless Config, choose Repeater.
Confirm that Repeater-Bridge (WDS) is set to Enable. Click Edit Registered WDS Partners.