Hi,
A bit of searching I thought that I found something useful, but no
sudo apt-get install crda
sudo vi /etc/default/crda
then change the line REGDOMAIN= to your country code, eg.
REGDOMAIN=CA
I modified the file (country was blank before) as above and rebooted
dmesg was about the same - actually took longer to associate with the router but I don’t think that is associated with this problem.
Interestingly CRDA still is not set even though I added the country code 
root@dietpi:~# crda
COUNTRY environment variable not set.
Could this be set somewhere else?
Gordon Williams