SimpleShare NAS gone dodgy!

Unsure exactly where this question should be. I think the actual problem might be a software issue in the device controller, but please advise if another place would be a better for the post.
I have had a 500GB SimpleShare NAS attached to my network for some months and it suddenly stopped showing files.

In My Network Places, one of my computers still shows the SimpleShare "place" but when I click on it, I get a message that I am not authorized to view it. Strange, I was a few days ago.

I can reach the NAS device via Explorer at 192.168.0.113 and sign into the admin panel, but here is another issue.

When this device was originally set up it's network group name was somehow set as Workgroup, while all of my Windows computers are on MSHome. That did not seem to be a problem as "Windows Network" showed both and when I clicked on Workgroup, the SimpleShare drive was there.

A few days ago, I had to restart one of the computers on the network and when it came back up and I tried to access the Simpleshare, the device did not show up (and neither did Workgroup). The restart may be purely co-incidental however, as it might have not been working for a few days previously and I just wasn't accessing it.

So through the admin panel, I attempted to set up a new network name as MSHome so as to match the computers on the network and was able to do so, but when I click on the SimpleShare under MSHome in My Network places, it shows a netfolder, but there is nothing in it. I was hoping that it might somehow show me the files on the hdd.

I am reluctant to set up a new "Workgroup" network name for fear of it conflicting with the existing one (but which is no longer showing up in under My Network Places) and not allowing me to see the files.

The hard disk is running as I can feel the vibrations of a running drive by just putting my hand on the NAS.

The fact that I can reach the admin panel of the NAS is encouraging (but this is probably a matter of reaching the controlling software of the device rather than reaching the hdd inside the box?), but also when I click on the new netfolder under MSHome, I can copy files into the share, open, close, and delete them. Hopefully this confirms that the drive is not dead.

It seems that others have had similar problems, but no one has yet posted a solution, so this looks like a good bone for those who understands NAS's to sink their teeth into. Please help as I, and others, have a lot of important data there.