Naim streamer reboots randomly

Sounds like you could have an issue with your network and the streamer is losing the connection to your server/NAS. Does the buffer remain full, or does it drop below 100% before dropping out? How is your network configured, maybe it's part of the problem? Also, will iRadio or any other sources play OK?

It does sound like an issue with your UPnP media player software/hardware... if it was a network or streamer board I would expect the app to drop out to select streamer as opposed to select media player... or simply tracks to randomly stop playing ... but not go back to select media server unless there is a significant connectivity issue. Be interesting to describe the connectivity between your media server to your streamer

therefore as a temp, run another media server perhaps on a PC or mac and wire up using Ethernet to your streamer to see if that plays out fine.

I agree with Simon, it certainly doesn't sound like a problem with the streamer itself.

Are you connecting the ND5 via WiFi or wired Ethernet.  If using WiFi, try using it wired (even if just as a temporary measure).

On the other hand, how are you controlling it (i.e. where and what control point are you using)?
If you are using the app on a portable device, it could easily be this causing the problem when it looses it's network connection and tries to reconnect.  If it does this in the wrong order you'll get just the  symptoms you describe (and I myself did get just this for a time before Simon helped me to identify the incorrect setting in my router).

It is hard wired on an HP gigabit switch. There are zero errors on the switch port it is connected to. When it stops playing, the Naim unit goes through an initialization cycle like when first powering on. Then it goes to the spot in the menu where you select the upnp server, remembering the last selection. Last night I used a USB stick to perform the same test, taking the network out of the equation. It did the same thing, only this time when it reinitialized, it went back to the USB input, again remembering the last selection. I have also used the remote only, the buttons on the player only, and the iPad app to control the unit. All with the same result.

When it was in for service, they appears to focus on network connectivity as well, as that was what they reported when they sent it back. I am not ruling network out, but with all the different scenarios I tried it seems unlikely.

If the same fault happens with a USB stick, it can hardly be a network error! Sounds like you need to get back to your dealer and ask them to have another look at it.

Concur with @Chrissu

I am now testing with USB only. Network cable disconnected and wifi off.

As it happens with a USB stick when using the IR remote or the front panel, then it's most likely either a fault with the unit or possibly a drop out (or brown out) on the mains supply.

With the new info presented, I suggest a visit to Salisbury General Hospital for your streamer....

The hospital's at Odstock not Salisbury!

Oh that one on the Southampton road!

On further thought, I don't think that one's a General Hospital; isn't it a specialist unit for sufferers of Audiophilia Nervosa?

I also have the XP5XS power supply and have tried it with both internal power supply and the external power supply. I have a dedicated circuit run for audio gear.

A dedicated radial circuit for the Audio system doesn't guarantee that you'll get no mains drop-outs or brown-outs, or elimination of RFI.

Huge posted:

I agree with Simon, it certainly doesn't sound like a problem with the streamer itself.

Are you connecting the ND5 via WiFi or wired Ethernet.  If using WiFi, try using it wired (even if just as a temporary measure).

On the other hand, how are you controlling it (i.e. where and what control point are you using)?
If you are using the app on a portable device, it could easily be this causing the problem when it looses it's network connection and tries to reconnect.  If it does this in the wrong order you'll get just the  symptoms you describe (and I myself did get just this for a time before Simon helped me to identify the incorrect setting in my router).

Out of curiosity, what setting on your router did you change?

I disabled IGMP snooping.

(Thanks again Simon for stopping me going bald!)

OK. I just checked and it is disabled on my router. Thanks!

And just to be clear IGMP snooping is a good thing and you should ideally be using it for optimum network performance especially with wifi, it's just there are incompatibilities sometimes with more basic devices interpreting  multicast  control protocols meaning your router/switch etc  doesn't correctly interpret multicast group management traffic and starts pruning multicast traffic when it shouldn't  be. In our streaming application multicast data is used to identify and register participating clients involved in streaming on an ongoing basis... result being errant pruning can make streaming devices appear to disappear from applications using your network and a specific  multicast group. With our UPnP this will not affect media play out just device discovery.

Thanks to all for your suggestions. I dropped the ND5SX off at my local shop. They will send it back for service. In the meantime they loaned me an NDX model to use.

Pdf1964 posted:

Thanks to all for your suggestions. I dropped the ND5SX off at my local shop. They will send it back for service. In the meantime they loaned me an NDX model to use.

A blatant attempt to infect you with the upgrade bug, no doubt!!

ChrisSU posted:

Pdf1964 posted:

Thanks to all for your suggestions. I dropped the ND5SX off at my local shop. They will send it back for service. In the meantime they loaned me an NDX model to use.

A blatant attempt to infect you with the upgrade bug, no doubt!!

I have no doubt, but they mean well. 

ChrisSU posted:

Pdf1964 posted:

Thanks to all for your suggestions. I dropped the ND5SX off at my local shop. They will send it back for service. In the meantime they loaned me an NDX model to use.

A blatant attempt to infect you with the upgrade bug, no doubt!!

Since I already have the XP5XS power supply, is the NDX really an upgrade to the ND5XS? Reviewing the differences between specifications and what are listed as features, the main difference is the improved internal power supply in the NDX. That difference should be rendered moot, by use of the external power supply.

They sound very similar, but listening to the NDX, I don't think it has had many hours on it. My ND5 has a more relaxed sound. The NDX seems ever so slightly "aggressive" at higher volumes, which the ND5XS does not. I'm sure the NDX will settle down with some listening time on it.

Are there other differences between the 2 that I am unaware of? I could probably get a great deal on the NDX but at this point I see, or rather hear, no reason to trade.

My impression is that the NDX is a considerable step up from the ND5, but to be honest, I haven't done a direct A/B comparison in the same system, so you should be in a better position than me to answer that. 

I can certainly compare the differences in sound directly when I get my ND5 back. I guess I was asking more about technology differences or internal components used. Thought someone here may have an inside track, or be more familiar with the full Naim line than myself. This is my first piece of Naim gear.

When choosing my first, stand-alone streamer I extensively compared ND5XS and NDX (with and without power supplies - used XPS only). Also tested both with an nDAC (this one in turn with a power supply).

I consistently prefered NDX - either using it as a digital transport or as a stand-alone player.

My understanding was that the ND5 + XP5 was similar in overall quality to the NDX bare.
However adding an XPSDR to the NDX took it to another level above (a level to which which the ND5 could never aspire, no matter what PSU was used).