Connecting powerline ethernet adapters through orange livebox

Reset the powerline and Try with a different network ID. Try with a secure and unsecured powerline network to see if it works that way

Hi,
Powerline adapters are generally not durable. You can try to reset the power adapter by pressing the reset button located on the device itself. If it still gives you a red light than call the manufacture and get it replaced.

Plug the PowerLine adapter into the wall
Plug one end of the ethernet cable into PowerLine wall adapter
Plug the other end of the ethernet cable into the Orange LiveBox
Plug the Orange LiveBox power adapter into the wall

Verify that it is indeed a wifi signal problem by moving the laptop upstairs temporarily.

If this fixes the problem, you're getting poor wifi signal downstairs. Not much you can do with the elements at hand. So try adding another element: install a wifi signal repeater (around US$ 25) somewhere in the middle. Or you can run a cable (or use Powerline Ethernet - around US$ 100) to downstairs, and there install a wifi access point (US$ 30-60). Or directly connect the laptop to the newly installed network wire.

If the problem isn't fixed, you have some other problem on the laptop: most likely a faulty network configuration. Verify against whatever PC you have upstairs; they should have identical configurations except their IP address (if fixed instead of DHCP).

Just to be on the safe side verify the laptop is properly operating and immune from virus and malware. Not all slowdowns are the system's fault.

Happy navigation!

you may be suffering from mixed Cat 5 and Cat 6 cabling.
The wiring is slightly different and they don't work well when mixed in routers and modems etc. One or the other will work , but when they're mixed it'll do what you have going on here...

I would recommend wiring everything with cat 6 ethernet cabling. Look on your cable and you will find the labeling on the outer casing.

No. You'll need to run a "cross-over" Ethernet cable from one of the "LAN" ports on the "downstairs" router, connecting to the "WAN" port on another router that you will need to buy, and place "upstairs", and connect the 4 devices to the 4 "LAN" ports.

Or, run a long "straight-through" Ethernet cable from your DSL-modem (or cable-modem) that is "downstairs", and move your wireless router "upstairs", and connect the 4 devices to the router's "LAN" ports.
Your laptop "downstairs" should still be able to connect (wirelessly) to the wireless-router that is "upstairs".

You can download the driver for your adapter from D-Link's support page here.
There are 5 different versions, so make sure you get the correct one.

You can then either burn that file on a CD or copy it on a USB stick - it is too big for a floppy though - and install it on your downstairs computer.

Of course you can carry the computer upstairs and connect it to the router via an Ethernet cable, but that would be my last resort.

If you have any more questions, just come back here and leave a comment - I'm happy to help.

there could be a problem with the xbox wireless adpter which it maybe a fautly item

Is your ReplayTV and Xbox configured to use DHCP? If not, you may need to configure static IP addresses for each of them.

Sounds like an internal problem with the Orange Livebox NIC controller.

If you have an other router Lynksys/belkin you could try it would isolate the problem definitively