Also hier ist die situation
That AirLive is not the best solution but you can try,
connect pc / lap by the wire (Lan) to it,
select a WDS Settings (repeater) mode, once confirm, the AP will reboot to its new mode,
in Wireless > Change Regulatory Domain to ETSI (Europe) or South America (14ch),
in LAN Interface Setup change:
IP=192.168.1.254 (AirLive will be on this ip address after applay / reboot)
Subnet=255.255.255.0
Gateway=192.168.1.1 (ip address of TG782)
DHCP Type=Disabled
reopen web config after applay / reboot on new ip adress,
find WDS Repeater settings, select WDS Mode,
under AP1 EncrypType select AES or TKIP,
Encryp Key is pass for WiFi on TG782,
MAC Address is MAC of WiFi interface on TG782,
use Site Survey function to see / select WiFi from TG782,
applay / reboot and it should start operating.
The problem can be what a classic WDS requires that the function is switch on (activ) on both devices.
On the other hand WDS functionality is thrown out for safety reasons.
If you fail, replacing AirLive with a device that has a Universal Repeter, ex TL-WR843ND.
For supplement AirLive manual >
http://fs.airlive.com/manual/AirLive_N.Power_Manual.pdf
That's it
