Can‘t connect Sony A95K to Homey

Hello all,

I would like to connect my Bravia XR A95K to my Homey, but it does not work.

Remote launch → on (enabled by apps)
IP control Authentication → Normal and pre-shared key
Pre-Shared Key → xxxx

When I manually enter the IP address a PSK is requested.
Here I enter xxxx that but then when I click on “Done” nothing happens.

Thanks in advance for all the help!