Iwe solved it for my self atleast… 
IP V6 was disabled …
Read in Matter troubleshooting
- Make sure IPv6 (multicast) traffic travels freely from your network to the Home Assistant host. There is no requirement to have an IPv6-enabled internet connection or DHCPv6 server. However, IPv6 support has to be enabled on Home Assistant. Go to Settings > System > Network, and make sure IPv6 is set to Automatic or static, depending on your network setup. If you’re unsure, use Automatic.