Fritzbox change from 7490 to 4060 does not work


I replaced my Fritzbox 7490 with a new Fritzbox 4060.
I ensured the new Fritzbox has the same IP as the previous one.
Therefore I thought the existing Fritzbox thing would just work as before.
Unfortunately it does not work.
I can see the following in the logs:

023-11-09 22:02:47.924 [WARN ] [core.thing.internal.ThingManagerImpl] - Initializing handler for thing ‘avmfritz:fritzbox:192_168_0_2’ takes more than 5000ms.

2023-11-09 22:07:32.620 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing ‘avmfritz:fritzbox:192_168_0_2’ changed from UNKNOWN to UNINITIALIZED

2023-11-09 22:07:37.656 [WARN ] [core.thing.internal.ThingManagerImpl] - Disposing handler for thing ‘avmfritz:fritzbox:192_168_0_2’ takes more than 5000ms.

Any suggestion what I am doing wrong?
Is the binding not compatible with the Fritzbox 4060?

Best regards,

Found the issue myself.
The gateway router had DHCP issues.
After resetting the gateway router everything is working fine again.