NAS drive offline? Can't connect to HDX

Have you set the WORKGROUP for the nas to NAIM?  Please try that.  Naim servers seem to require that and it trips us all up at first.  There will be a setting on your nas for this; check the 'workgroup' setting and change it to NAIM.  Save the setting, then reboot the nas.

Let us know if that helps.

Thanks Bart. Yes I have followed some of the forum threads and found some very useful info. This included your above suggestion plus rebooting all devices etc. I think I have made a breakthrough after doing these changes. But can you tell me, is if from the HDX or the DTC that you create the backup to the NAS or is it from the NAS? (as suggested by the the HDX manual). The NAS instructions (Synology) suggest that you can only backup the NAS to itself or another NAS.

Ignore the Synology instructions -- they are for backing up the nas, and you are talking about backing up the HDX.  All you need the nas to do is to create an empty shareable folder that will be your backup destination.

There indeed are some helpful posts to be found here about this.  The basic process is to create a new, empty, shareable folder on the nas (using the Synology dashboard to create a new shareable folder, make it a Share with the DTC (I use nServe for OS X but it's the same process), and then make that new empty share a Backup folder.  This is what the manual says to do.  If in doubt, review the UnitiServe manual; the two devices work the same.  After you tell the software to make your Share a Backup, you can go into the Backup section of the DTC and schedule backups from the HDX to that Backup.  But sometimes you can't immediate do this last step; the system needs more than 10 seconds to set up that new Backup.  Let it sit a bit and come back and see if you can set a backup schedule.

Hope this helps!

Thanks Bart. I have created a shared file HDXbackup and created a share but now this has disappeared from the HDX view. I have created  a Store which is visible and online - so figure that out!

I thought I nearly had it when I tried to set a backup on the HDX but may have to reboot everything again to see any results - not holding my breath! the NAS is showing on the network in Windows.  To schedule backups in the DTC is this within the Backup Scheduler? 

I use the DTC to create the back-up schedules. Occasionally, I lose the NAS but usually a reboot makes it return. Once it's up and running, it generally stays that way!

I should add that sometimes a re-boot of the HDX restores things.
Did you find the back-up setting in the DTC? (I just saw your earlier thread)
If not, click on the top left corner where it says HDX - Library and it drops down to "maintenance" and you can find the back-up settings in there.

Thanks blythe. Yes I can now on the DTC the Maintenance -  Backup Scheduler. But it is not giving me any option for the source drive other than E:. I have mapped a drive to the HDX and the NAS and these show as Z: and W:. Should my source ow shown as Z:??

As a first step, you need to get the share to show up as a share, reliably.  If everything is right, this should not be an issue.  Just be sure to create a new empty shareable folder.

Maybe something is amiss with the permissions on the nas re the shared folder you're (trying to) promote to a Share? 

When I look, I see all of my shared folders on my nas showing up as Shares in the DTC.  What do you see for Shares when you don't see the one you want to be a backup?

Getting the share to show up reliably is my problem. Sometimes it's there and I nearly have it sorted, other times not.

I have mapped a drive to the nas which shows up and created a shred folder (hdxbackup) which is mapped. I can create and promote a store but it is the share that keeps disappearing. Another thread suggested creating naim as a user which I have done and use this. I am even able to copy direct form my computer the files from hdx to nas but not using the direct route through the DTC.

The nas does not show at the moment as a share even though it is one and connected in my network