RNDP600E Readynas Pro Pioneer Edition - Unable to access shares

Howdy,

I have been running Readynas Pro Pioneer Edition successfully for many years, but recently I have not been able access my shares.

I can see the NAS via Raidar Utility (it is described as healthy), and access via Server Page and Shares page using HTTPS in a browser but that is it.

- There are no shares listed, and I can not add any new shares without receiving error message, or the screen refreshing without applying changes 

- On my Windows 10 PC I cannot see the NAS in network, and cannot map network drive to it using NAS name or IP Address.

- Under services, the only standard file protocol enabled is HTTPS. If I try and enable anything else the screen refreshing without the change being applied.

- I am running Firmware 4.2.28, and trying to update to 4.2.30 was unsuccessful.

I have looked at other posts about Windows Credentials issue etc. but that has not worked either, and starting to run out of ideas.

If I could make changes to the settings I think I would be able to fix it, but because nothing will apply I am really stuck.

Any advice would be appreciated.

Thanks,

Rohan