Thank you for you reply. I am currently working with the Matter framework. I succeed on a commissioning (delegate called without error) but I cannot 'connect' to the device after a reboot of the application. I build the ChipTools sample and unfortunatelly the API is bit different and some methods used seems to be private now. I also tried the MatterSupport framework but I wasn't able to commission a single product... Well, I am still trying to find a solution and any help is welcome.