I did found a "small solution" for the error-msgs   [ 9.938370] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 [ 9.938386] cfg80211: failed to load regulatory.db In the archive http://ftp.be.debian.org/pub/software/network/wireless-regdb/wireless-regdb-2018.10.24.tar.xz you could find the files regulatory.db regulatory.db.p7s   copy them from the archive directory wireless-regdb-2018.10.24 to /lib/firmware and you will get