User manager radius failed?

Running 2.9.43 with the user manager, since last night I’ve been logging

RADIUS: accounting request not sent: no response

This is going via Radius setup as 127.0.0.1 which still responds to ping :stuck_out_tongue:
Is there any way to check if the user manager radius service is working?

As it stands this isn’t a production box, but if it were the only way I can see to get it working again would be a restart (hence losing download records) Everything else seems to be running fine.