I have faithfully followed the instruction sheet accompanying the BT Broadband Extender 600 Kit:
This didn’t work. Still no green data light (light off). I have also gone through ‘reset to factory settings’ (press and hold button more than 15 seconds) and repeated steps 1 and 2 above. Still no green data light.
I have a TalkTalk router (Huawei HG633 hardware version H.1.01).
The power light on the extender connected to the router shows green for power and ethernet. The second extender is in power standby mode (no lights on even though the power socket is switched on).
What can I do to get the extender/s working?
All I can suggest is that you contact the product helpdesk, as there is no extra support here for that retail product. It may be faulty.
If you think it may have something to do with your router, then try asking on the Talk Talk user forum.
Try temporarily moving both units close to your router with one connected to the router by ethernet cable and do a factory reset on both. if it still doesn't work then you have a fault. If possible plug both units into the same dual socket.