Naim app discovery and BT Hub 5 problems

Posted by: Bruce Woodhouse on 18 February 2015

For a month or so the NDS has worked perfectly with the New Naim app on the iPad but suddenly the connection has dropped. Get it back once, briefly and now the app will not connect to the NDS for love nor money.

 

I have read the 'sticky' topic above regarding this. Running NetAnalyser shows no Bonjour tag on the NDS so presumably this is the snag. I have not changed the BT Hub although it replaced a Netgear last year (that seemed very prone to dropping out of the ADSL connection).

 

Any suggestions? If I have to go for a new Router (which is fine although the BT hub 5 works really well otherwise) what do Its look for in the spec that can give me a decent guarantee it will all work properly again!

 

Bruce

Posted on: 07 March 2015 by Simon-in-Suffolk

Bruce, I don't know if you have had any success?

However I have been thinking about this further, and I have devised a little test you could do to help acertain  whether the issues you are having  are discovery related or something else... I was trying to reduce the trial and error with additional switches etc..

 

The only thing you need to be able to do is type ping at a PC, NAS or Mac command line.

Let me know.. And I am happy to advise.

 

BTW I have also discovered that running Net Analyzer on an iPad (with the current iOS) is not always reliable for showing protocols like UPnP.

Simon

Posted on: 10 March 2015 by Bruce Woodhouse

Simon

 

For now it all works perfectly in terms of discovery so I'll hang on and see if problems recur, but thanks.

 

Al I need now is to find out from BT why our broadband drops out for a few seconds at a time in the evenings, but almost never in the daytime. Definitely not because of something in the house causing it. Then I will be in network connected nirvana!

 

Bruce

Posted on: 10 March 2015 by Simon-in-Suffolk

Bruce

 

Ok let me know - the little test is easy to do if you have issues again- and straightaway you can see if something is not responding or being blocked to the UPnP multicast discovery.

 

As far as drop out in evening - has this happened recently with the new broadband router (HomeHub) ? If so it could be the modem is optimising the line with the exchange. It may happen for 10 days or so then should stabilize - it shouldn't be every evening at a regular time however. Essentially the modem and exchange are optimising their DSP between each other to get the optimum throughput on the line. The signal to noise ratio response of an ADSL line in the evening is worse than say very early morning (its down to ionospheric absorption as well as possibly man made interference  - but that is another matter ... ). So your modem speed may be slightly reduced ultimately but will be more stable... this becomes more acute with long lines and rural lines.

 

PS this optimization also occurs with superfast when activated for the first time - but here the lines are shorter - and so other factors have a lesser infleunce

Posted on: 10 March 2015 by Bruce Woodhouse

Cheers Simon

 

The BT hub has been in for maybe a month now. We had the line damaged by a passing tractor a few months ago and BT have had several goes at improving the integrity of the service since. In fairness they always responded to our calls, and they are working on the problem.

 

bruce