Re: Power line Ethernet stopping iPhone Sonos app working

["Phil Harris phil@xxxxxxxxxxx [ukha_d]" <ukha_d@xxxxxxxxxxxxxxx>]

We've not specifically seen issues with DHCP but we have seen issues where
they don't wake up properly after they've gone into low power mode (but
popping a simple network switch between the EOM device and the kit
connected to it resolves it - go figure!) and we've seen issues with IGMP
(v2 and v3) broadcasts not being correctly passed through them ...

Phil

Sent from another bloody fruit-based portable device...

> On 25 Jun 2016, at 15:01, Nicholas Humfrey njh@xxxxxxx [ukha_d]
<ukha_d@xxxxxxx> wrote:
>
> Hi,
>
>
> Yes, I have also experienced problems with high latency and packet
loss
> with power line ethernet at my parents house. I personally have Cat6
in
> my house, but I can understand that not everyone can/wants to lift the
> floor and chase wires in the walls!
>
>
> I imagine part of the problem with Sonos is that because it aims for a
> low latency audio between speakers/zones, it doesn't cope will with
> having to do packet re-transmissions, which then add to the delays.
>
>
> Very odd that power line has problems with DHCP - I have not seen
that.
> Although it is possible if packet loss is high enough, the repeat
> requests/responses just aren't getting through; DHCP uses UDP not TCP.
>
>
> Additionally BBC R&D have done some research that shows power-line
> transmissions can interfere with broadcast transmissions:
>
>
> http://www.bbc.co.uk/rd/publications/whitepaper195
> http://www.bbc.co.uk/rd/search?query=PLT
>
>
>
>
> nick.
>
>
>
>
>> On 2016-06-25 08:33, Phil Harris phil@xxxxxxx [ukha_d] wrote:
>> Yup - they're the f*cking bane of my life too and the first thing
that
>> I get anyone that calls me with streaming / discovery issues with
our
>> kit to remove from their networks as the very first test ...
Almost
>> always resolves the problem.
>>



------------------------------------
Posted by: Phil Harris <phil@xxxxxxx>
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