iRadio drop out ... only with BBC HD stations

Posted by: Parlee-king on 21 June 2016

Anyone else having issues with the BBC HD feed?

Been having issues with the BBC HD channels 2, 4, 5 & 6 stopping streaming at random pretty much since I replaced the SU with the 272 in April ..... curiously I have no issues with other stations Naim 320K, Radio Paradise , Linn Jazz AND BBC std channels.
Sometimes it will drop out & restart within a few seconds, but more often than not the stream stops and doesn't restart.

BBC 2 HD failed twice between 6am & 7am this morning, both after 20-25 mins , switched to BBC 2 STD been solid ever since.

When I was burning in the new 272 / 250DR pair I would like many I suspect just leave the radio on, often returned to find the stream had been on all night, or all day.  so it does work for extending periods just not consistently.

Pity as the BBC HD SQ is very nice to my ears

Also with NAS & TIDAL HiFi stream ... never had a drop out.


272 is hard wired via to Powerline1200, other Powerline is connected to BT Hub5, with infinity 50MB service.

Posted on: 21 June 2016 by ChrisSU

The power line adapters could be the problem. As an experiment, can you try connecting over WiFi just to see if anything changes? Alternatively, a better test might be to use a proper wired Ethernet cable. Just get a very cheap Cat5e cable from eBay for a couple of quid and see if it solves the problem. If it does, think about drilling some holes in your walls and networking your house properly. 

Posted on: 21 June 2016 by Mike-B

It dropped out on me this morning,  but apart from saying me too & its the first time ever & it only happened once & its been OK since,  I have no idea's other than it might be a BBC issue.   By BBC HD, do you mean HLS 48kHz 339kb/s ?    Did you notice what the buffer was showing,  mine has been showing 100% for the last 30 mins.    (Also I'm BT HH5 & 52/10mb service)

Posted on: 21 June 2016 by Parlee-king

This morning after my post been out of the house but switched to BBC2 STD 135kb HLS service: returned still playing timer ticking
Switched to BBC 6 HD music for Radcliffle & Maconie , been locked on for 90 mins

ChrisSU. 


My reasoning is away from the powerline because it works 95% of the time
The other 320kps+ iradio services & tidal/spotify are rock solid?  
upnp from the Vortex server is fed over the same pair without issues, with 24/192k
 My TV is also connected to t'nterweb over the same powerline pair and works a treat with HD video streaming,

I was wondering if the BBC feed is the root of the issue, rather than my network.

 

if I use the WIFI is it consistently less stable with all channels
With the SU Wifi was unstable enough to make me get the Powerlines they are the 1200 not slow ones.

I do have two 25m length of CAT 5 I can try  .... BT hub is as far away from listening room as it could be in the house.

Mike-B

so its not just me then

Yes its the HLS 339KB/s stream ....,, showing full signal.

when it fails if you try and restart the 272 can't find the station until I switch to a non-BBC preset or other input.



hopefully the next firmware update will assist

Posted on: 21 June 2016 by ChrisSU
Parlee-king posted:

ChrisSU. 
My reasoning is away from the powerline because it works 95% of the time
The other 320kps+ iradio services & tidal/spotify are rock solid?  
upnp from the Vortex server is fed over the same pair without issues, with 24/192k
 My TV is also connected to t'nterweb over the same powerline pair and works a treat with HD video streaming,
I was wondering if the BBC feed is the root of the issue, rather than my network.

 if I use the WIFI is it consistently less stable with all channels
With the SU Wifi was unstable enough to make me get the Powerlines they are the 1200 not slow ones.

I do have two 25m length of CAT 5 I can try  .... BT hub is as far away from listening room as it could be in the house.

You could well be right that this is a BBC/vTuner/ISP issue, rather than a problem with your LAN. I only suggested trying the Ethernet or WiFi options because they are a very easy way to rule out any LAN issues caused by the powerlines. If you already have a long Ethernet cable, so much the better. You may also find that you get an improvement in sound quality by turning off the powerlines.     

Posted on: 22 June 2016 by Mike-B

How is the BBC service today?,  mine has been 100% for the last 2 hours,  R4 & R2

- I don't know who saw it as it was not up for long, but we  had a sticky post from Steve Hopkins yesterday about a break in service with Naim Radio & RP,  it was a server down,  might've been the same with BBC  

Posted on: 22 June 2016 by Parlee-king

Quick: update still getting intermittent problems with BBC HD, BBC2 dropped out around 6pm last night, before we went out.

After then R2HD was connected for more than 3 hours via the powerlines AND did a stress test for 20 mins by streaming an HD channel to BT vision box and at the same time streaming iPlayer HD to TV, iRadio ..buffer shows 100%
dropped out about 9:15pm.

left it on the Linn Jazz (320k but MP3 not HLS) stream all night, still locked on this morning at 6:45am

Ok lets try the suggested direct connection, visually a low WAF, but she has gone to work....two drop out stops this morning since 7am.   FYI SQ absolutely no determinable difference between wired and powerlines, on iradio & tidal

Oh well the high rate HLS is good when it works



Posted on: 22 June 2016 by Stampie

I've experienced similar issues with the BBC HLS streams, mainly 6music (as I listen to this most of the time). Like the OP, it would randomly just stop. However, without wishing to tempt fate, I reckon I've only had one or two dropouts in recent months. I've always put it down to problems 'at their end', as my internet connection is rock solid and everything is connected over ethernet.

Posted on: 26 June 2016 by Nic-collins

I have the same problem with Radio 2 HD, it regularly drops out and pressing play usually restarts it.  I use Devolo 1200's which work perfectly for 1080p streaming etc so the problem appears to be with the BBC HLS streams on my Unitiqute 2?

Posted on: 26 June 2016 by Parlee-king

so its not just me that has the BBCxit issue.

Rebooted the 272 (again) and since then its been pretty stable over the weekend, held steady for 12 hours, but dropped out yesterday. No great shakes, sounds good when its working.

Posted on: 26 June 2016 by Simon-in-Suffolk
Nic-collins posted:

I have the same problem with Radio 2 HD, it regularly drops out and pressing play usually restarts it.  I use Devolo 1200's which work perfectly for 1080p streaming etc so the problem appears to be with the BBC HLS streams on my Unitiqute 2?

I am not sure you can the Devolos are not part to blame say with certainty. Web radio along with web streaming require low latency two connections.. It's not about bandwidth but latency.  Doing this allows Naim to provide responsiveness and avoid  adding potentially SQ robbing additional computer hardware in their devices.

The Develos were, when I looked at them, essentially half duplex derives. These add to the two way latency of the TCP windowing mechanism. Now this might be compounded with any latency issues with your ISP. Naim are developing firmware which are more tolerant of TCP latency, but I would be looking at removing Ethernet workarounds  / kludge such as the Devolos first if I had issues.

Simon

Posted on: 27 June 2016 by Parlee-king

Good point any additional device always adds latency... typically 4mS 

I'll be adding a wired connection when we redecorate, later this year.  

Posted on: 27 June 2016 by Nic-collins

I'll not be changing the Homeplugs, my router is 3 floors away in a grade 2 listed building so I won't be putting any cabling in to solve a minor problem with Radio 2 HD!  Like I said, everything else streams perfectly, including HD video, so I'm not that bothered about Radio 2, I just thought I'd let the OP know that he's not alone.

Posted on: 03 July 2016 by Simon-in-Suffolk
Parlee-king posted:

Good point any additional device always adds latency... typically 4mS 

I'll be adding a wired connection when we redecorate, later this year.  

But they are essentially half duplex ethernet work arounds .. So real TCP latency which is what is relevant here could well be  higher.. ..