RNDU6000 (ReadyNAS Ultra 6) – Frontview not accessible

Hello everyone and appreciate any help at all.

Have used this forum a lot over the years as I have owned the above ReadyNas since 2012.

The problem is esentially that all access to front view has stopped along with access to the shares.

Nas is configured for Raid 6 - 6 x 3Tb drives - all the same brand and age

I had SMB and CIFS configured but no SSH

Data is backed up - all good - took notice of a lot of advice from this forum - but the display of the actual unit is advising that the data is taking up 8Gb of 10Gb so it looks as if the data is also intact on this nas.... just inaccessible.

I do have access to:

Raidar - latest version - mac 6.3-T1

Here it tells me that the nas is "healthy" and i have green ticks in all drives, running FW 4.2.30. I select either the "admin" or browse" buttons and for the former i get "err conn refused" and "cannot find share" for the second.

The Nas has been performing flawlessly for a year (since the last drive upgrade) and i powered it down in order to protect it from a rather nasty lightining storm on Saturday. I live in Brisbane, Australia where it is semi tropical and we get strong thunder storms... i am currently on my 4th UPS since 2012.

Therefore the problem seems to be not one of data recovery but more of actually accessing the data itself. I would be most appreciative if anyone could assist.

Thanks in advance.