Orvibo can't find internet

Configuration
1

do I have to scan each orvibo s-25 one at a time as I add them,I bought the first one last month and it’s been fine then I bought 2 more and neither could find the internet.So I’m stuck trying different things,I thought you just had to scan the first one and then set the others with the homemate app.
Thank’s

2

I also did not mention that I can’t scan the qr code,is there another way to activate socket s25.

3

Hi, I brought Orvibo S25 socket, but I can’t discover them at HA. Did you work it out?
Thanks!