I have a question about the Uniti Core and its backup. If I run my usb backup through the Song Kong program (which attaches a new tag to wav files), the next time I run a backup, would only the new music be backed up, skipping the previous rips?
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Any files that have been modified will be backed up again, but not ones that haven’t been modified.
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That’s what I was afraid of, so I’ll try something else. Thanks for your response.
Hello David, you mentioned on another thread that I should raise the question on any open Core thread, so I hope the OP doesn’t mind me using this thread.
My question was why I am unable to stream from the Core (either through Ethernet to ND555 or over WiFi to ND5XS2s) when the internet drops out, which it does quite frequently on 4G broadband. I can understand why Qobuz stops working, but not when I’m streaming from a source on my own network.
Thanks for helping me understand this behaviour.
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That’s fine, we all love to learn about the Uniti Core!
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Sorry for the delay in replying. It’s been a busy day and it involved a lot of driving…
So some starting points. What @Ophelia says about the two ways of using the Core is exactly right. You are only using the upnp way at present, so you mustn’t build playlists in the Core page because they will do nothing for you at all!
And another starting point, unless you have a network failing, it makes no difference whether you are using Ethernet or WiFi. They are the same for the purposes of this discussion.
If you tell a streamer, let’s say your ND555, to get an album from the Core, as you use upnp, the Core and the ND555 need to have an IP address each and they need to be able to talk to each other.
So here is the thing. When you turn stuff on, it talks to your router and gets a “lease” of an IP address. The lease is likely to be 24 hours or longer. And it’s automatically renewed when it expires. The IP address is stored in the Naim device.
If your broadband goes down, then your hub or router likely will reboot so as to try to get it back again. While it’s rebooting, if the switch associated with the router is off line, then the Core and ND555 won’t be able to talk to each other, even if they still both have an IP address that the other can use.
So you can probably sort the issue you have, at least for your ND555, by making sure they both plug into a switch that isn’t part of your 4G modem. You can one one Ethernet cable from 4G modem to the switch and then plug the Core and the ND555 into that switch.
But another part of this is that the Naim app on a phone, probably using WiFi, and the WiFi connected streamers are all cast adrift if you use the 4G modem to do WiFi too. I don’t know whether you do as I have never needed a 4G modem so don’t know how they are configured. But if you can separate the 4G modem from the WiFi access point/switch, then you probably will find things work fine even when the 4G goes down.
To illustrate this, I once took a Qb and my Core on holiday to France and used them in a rental where there was no broadband. I took a router along that was happy to just sit and ignore the fact there was no broadband at all. I could use the app to choose the music and have the Core send music to the Qb. I just had to turn WiFi off on my phone if I wanted to go to the internet as my router never had any!
I hope this helps. It’s a simplified explanation that can no doubt be improved upon!
Thanks, David, for such a comprehensive reply. I’m going to have to reread it a few times! Nothing in my house is that simple in that both the ND555 and Core are connected via a switch to a mesh network device. The 4G router is connected to another mesh device in the loft. The bedroom ND5XS2 connects via WiFi to the mesh unit in the loft. The ND5XS2 in the garden room is plugged into another mesh device. It’s a wonder I got it all to work
Curiously, in days past I had broadband over the telephone line, which came into a router which was connected to a switch and an NS01 and NDS (later ND555) were connected to that switch. So the conventional installation as far as I’m aware. However, that too failed to work when there was no internet. If I’ve understood your note correctly, this may be because the switch is offline, but the switch was (and still is) remote from the router so I don’t see how that can really be the case.
I might have made matters worse by fixing an IP address somewhere in the system some time ago. I can’t remember which one I fixed or if I unfixed it at a later date. I can’t even remember how I did this either! I’m just thankful that it works when there’s a broadband connection.
I suspect this is too complicated for me to troubleshoot remotely!
How exactly does the failure of streaming manifest itself when your 4G fails? Does it finish the track it’s playing but fail to go on to the next in the playlist? Or does it stop dead mid-track?
That’s no problem, David - I certainly wouldn’t expect it. As I said, I’m glad it works when I have a broadband connection.
I cannot really say what happens when broadband fails mid-track as I don’t remember the last time it happened. What does happen though is that I cannot get it to play. I then check the broadband and find it has failed. The other situation, which occurs frequently (a number of times each day), is that Internet radio goes off. This is nothing to do with Core, of course. On such occasions it sometimes reappears without my involvement. Other times I have to go to the app and stop the (nonexistent) stream and restart. I guess it’s all part of the streaming experience!
Of course I could be wrong…….. 
.
However, what you describe suggests all your local network traffic is being routed through your broadband provider’s WiFi router’s default gateway, which is of course remote from your home network; ie to get from your Naim streamer to your Naim Core the network traffic goes out from your WiFi router over the internet to the provider’s gateway and then back to the WiFi router, though how this configuration is achieved I have no idea. Thus when broadband is down, your local network stops working…..
As @davidhendon indicated, this would be well nigh impossible to diagnose remotely and could be dependent on hardware provided by your broadband supplier……
Sorry can’t be any more helpful and hope I haven’t set up a rabbit hole.
ATB, J
I’ll sketch out the network and, if we have a spare five minutes, I’ll show you the arrangement on the 20th. It’ll give you a laugh, I’m sure. It’s a pity David is not going this time.
It was the way the draw worked out Clive.
I reckon for all the support you provide on here, David, you should be given a golden ticket.
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David, I think you’re far more deserving of a place than me, so if you’d still like to go and it’s OK with Richard and Paul, I’d be happy for you to take my place (just so long as you tell me what happened!).
Clive that’s very kind of you, but I couldn’t possibly accept, even if Richard did agree. You go and enjoy it!