Hi hoping someone can advise. I have a tp av600 extender which has been working perfectly. I have a second, identical extender and thought it was also working but realising now its the first extender i am accessing. 

I need the second to reach other area of house... especially with 2nd lockdown and kids all home , i need to try extend the wifi. 

Ive attempted to set up with the new extender but it wont pair... any advice?

Should i be pairing from the one power line adapter or use both individually pairing with their seperate power line to modum?