Philips Hue Manually configure a Hue device

I add the Host IP but get an unknown error occured message

Hi, welcome to the forum!
You’re not sharing much.
Have you seen this: Philips Hue - Home Assistant

Yes thanks.
I’ve had Hue for years and when I got HA it hasn’t detected any of the 6 devices I have.

So when i manually add the IP of the bridge as it says it gives me the error.

Did you restart HA after adding the integration and do you have a round or square shaped model?