Hi, 

I currently have:

• 1 AV600 TL-PA4010 connected into the router and plugged in downstairs)
• 1 AV600 TL-WPA4220 (extender) connected into a plug socket upstairs and providing ethernet to my PC

Both of these units are working fine. 

My partner just purchased the AV1000 Gigabit Powerline Starter Kit (Contains 2 TL-PA717 powerline adapters) but we cannot get either of the new units to further extend the network provided by the AV600 pair.

• We tried simply plugging a new AV1000 PA717 into another upstairs socket, but we had nothing but a flashing power LED
• We then tried pairing (press the pair button on downstairs AV600 TL-PA4010 for 1 second, place the AV1000 PA717 in a nearby socket and press the pair button then wait). This didn't work either 
• I then tried the following 
  • Unplugged the upstairs AV600 TL-WPA4220
  • Plugged in the AV1000 PA717
  • The AV1000 PA717 worked (power and powerline LEDs both green) 
  • Plugged the AV600 TL-WPA4220 back in
  • The AV600 TL-WPA4220 stopped working (no powerline LED)
  • When trying to connect to the network, a new password was being requested (no passwords were provided in the box, or as stickers on the units like with previous models) 

In summary, I was hoping that we could plug in an AV1000, and the 2 AV600s + AV1000 would simply work all together. 

Could someone please offer some guidance? I'd prefer not to return all my tp-link units and have to search for another reliable wi-fi extension provider :D. 

Love Zakky x