I have a CCR 9 core on 6.15. It is in operation and working, but I can no longer create a backup. The password for the admin has reverted to blank also and won't save. I can't create a capture file with packet sniffer. It is as if the file system has become read only.
The exact error when I try to backup is
Couldn't make backup - action failed (6).
I am not seeing any errors in stores/disk, or anywhere else.
It is a major issue as it is a core router in a reasonably large network.
Any ideas? I have exported the text config and I am thinking I have to factore reset and restore that, but if I don't have to I would be very happy.