Are you sure KNXD is running?
systemctl status knxd.socket && systemctl status knxd.service
If not, there is an excellent guide to check out here. Guide to setup KNXD with Busware ROT on Raspberry 3B as KNX IP Gateway
Are you sure KNXD is running?
systemctl status knxd.socket && systemctl status knxd.service
If not, there is an excellent guide to check out here. Guide to setup KNXD with Busware ROT on Raspberry 3B as KNX IP Gateway