Changed router now Link extender password problems

[RrogerD]

As the title:
I've changed the router and have managed to reconnect my TP Link extender, the type that plugs into the mains both nearby and at the other side of the house. I'm getting an excellent signal to the extender but it doesn't like my password. The one with the new router.
I've tried 'admin' as well and that does not work.
Would it still be remembering the one from the old router?
Any ideas?
Cheers

 

[Vicario]

Have you told the extender to use the new router's password? These devices often have a web interface where you can change the extender's settings to use the new password. It definitely won't log onto the new router until you have tweaked the settings.