iSCSI page failure

I managed to get this sorted, with the help of Netgear support. I updated the firmware first (which had no effect) then ran the OS reinstall which seemed to fix the issue. Based on what you have said I'm guessing that somehow the /etc/ietd.conf had become corrupted as it was only the iSCSI section of the web interface that was effected. Once that was done I was able to reconnect all my iSCSI stores and start all the VM's back up no problem. I have also been getting some odd errors stating "Snapshot on volume C was invalidated and has been removed due to reserve space being completely used" Not sure if this has any bearing in the situation?

I still can't access the .iscsi hidden folder. I tried your method through the CMD prompt but maybe my syntax is wrong. I used \\readynas\c\.iscsi, \\readynas\c, //readynas/c/.icsi and //readynas/c?