From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from tn-mailgw-04.telenor.no (tn-mailgw-04.telenor.no [153.110.76.7]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 36A6C3B29D for ; Tue, 8 Mar 2022 02:11:11 -0500 (EST) X-IronPort-AV: E=Sophos;i="5.90,163,1643673600"; d="scan'208,217";a="121730824" Received: from tns-sko-24-208.corp.telenor.no ([10.179.59.76]) by tn-mailgw-04.corp.telenor.no with ESMTP; 08 Mar 2022 07:11:09 +0000 Received: from TNS-SKO-24-210.corp.telenor.no (10.179.59.78) by TNS-SKO-24-208.corp.telenor.no (10.179.59.76) with Microsoft SMTP Server (TLS) id 15.0.1497.28; Tue, 8 Mar 2022 08:11:09 +0100 Received: from TNS-SKO-24-204.corp.telenor.no (10.179.59.72) by TNS-SKO-24-210.corp.telenor.no (10.179.59.78) with Microsoft SMTP Server (TLS) id 15.0.1497.28; Tue, 8 Mar 2022 08:11:08 +0100 Received: from outlook.telenor.no (10.179.127.60) by TNS-SKO-24-204.corp.telenor.no (10.179.59.72) with Microsoft SMTP Server (TLS) id 15.0.1497.28 via Frontend Transport; Tue, 8 Mar 2022 08:11:08 +0100 Received: from pwpvn2209ex001.nxvp.net (10.149.139.134) by pwpvn2209ex004.nxvp.net (10.149.139.137) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.18; Tue, 8 Mar 2022 08:11:08 +0100 Received: from pwpvn2209ex001.nxvp.net ([10.149.139.134]) by pwpvn2209ex001.nxvp.net ([10.149.139.134]) with mapi id 15.01.2375.018; Tue, 8 Mar 2022 08:11:08 +0100 From: Taraldsen Erik To: Jonathan Foulkes , Rpm Thread-Topic: [Rpm] networkQuality test for Apple TV? Thread-Index: AQHYMnJdTDk+sGxw/UWorbYlYyvYp6y1DzMc Date: Tue, 8 Mar 2022 07:11:08 +0000 Message-ID: References: <2E95C9C9-CA35-447A-82D8-7DB34DDF1664@jonathanfoulkes.com> In-Reply-To: <2E95C9C9-CA35-447A-82D8-7DB34DDF1664@jonathanfoulkes.com> Accept-Language: nb-NO, en-US Content-Language: nb-NO X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.149.139.250] x-tm-snts-smtp: EB55D16847335E1D1D3433CE8EDE317BCDE04EDAF6FBF3D5078AD41614BAC1622000:8 Content-Type: multipart/alternative; boundary="_000_bd815e62e2354c699a2c619e432e24datelenorno_" MIME-Version: 1.0 Subject: Re: [Rpm] networkQuality test for Apple TV? X-BeenThere: rpm@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: revolutions per minute - a new metric for measuring responsiveness List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Mar 2022 07:11:11 -0000 --_000_bd815e62e2354c699a2c619e432e24datelenorno_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The wifi on the ATV is a bit annoying. In a wifi network where the 2.4GHz and 5GHz are named the same, your typica= l "mesh" setup, the ATV has a tendency to hang on 2.4GHz. In particular af= ter a power outage, or when you reboot the wifi after the ATV is on. The 5= GHz takes a bit longer to come online after reboot due to interference chec= king. Meaning that for a period of time the network will only broadcast on= 2.4GHz. The ATV connects to 2.4. And stays there. It does not send a si= ngle probe request on 5GHz (unlike iphones, ipads, macs which are very well= behaved in that regard). Meaning the ATV does not self select into 5GHz w= hen its available. And the wifi system does not get any hint (lack of prob= e request) that the device can indeed support 5GHz and therefore most of th= e system's wont force steer the ATV to 5GHz. Going to sleep and wake up do= es not toggle a new wifi scan from the ATV. Power off/on will. Not really a answer to your problem - just another problem. -Erik ________________________________ Fra: Rpm p=E5 vegne av Jonathan Foulkes= via Rpm Sendt: mandag 7. mars 2022 23.25.53 Til: Rpm Emne: [Rpm] networkQuality test for Apple TV? Has anyone heard of an implementation of the NetworkQuality test App that a= n average user can obtain from the AppleTV app store? Background: there are many threads in A/V circles regarding issues with App= leTV4K having trouble maintaining a steady Atmos audio stream while playing= 4K DolbyVision content. I believe many of those glitches are likely due to poor networkQuality (at = the ATV), but need a test to prove it. I have two ATV4Ks, and play plenty of DV/Atmos content, and rarely (never?)= have an audio glitch. But then, both are wired, and I have high RPM on my = network. Thanks, Jonathan Foulkes _______________________________________________ Rpm mailing list Rpm@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/rpm --_000_bd815e62e2354c699a2c619e432e24datelenorno_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

The wifi on the ATV is a bit annoying.


In a wifi network where the 2.4GHz and 5GHz are named the same, you= r typical "mesh" setup, the ATV has a tendency to hang on 2.4GHz.=  In particular after a power outage, or when you reboot the wifi= after the ATV is on.  The 5GHz takes a bit longer to come online after reboot due to interference checking.  Meaning that for a= period of time the network will only broadcast on 2.4GHz.  The ATV co= nnects to 2.4.  And stays there.  It does not send a single probe= request on 5GHz (unlike iphones, ipads, macs which are very well behaved in that regard).  Meaning the ATV does not self= select into 5GHz when its available.  And the wifi system does not ge= t any hint (lack of probe request) that the device can indeed support 5GHz = and therefore most of the system's wont force steer the ATV to 5GHz.  Going to sleep and wake up does not toggle a = new wifi scan from the ATV.  Power off/on will.


Not really a answer to your problem - just another problem.


-Erik



 

Fra: Rpm <rpm-bounces@= lists.bufferbloat.net> p=E5 vegne av Jonathan Foulkes via Rpm <rpm@li= sts.bufferbloat.net>
Sendt: mandag 7. mars 2022 23.25.53
Til: Rpm
Emne: [Rpm] networkQuality test for Apple TV?
 
Has anyone heard of an implementation of the Netwo= rkQuality test App that an average user can obtain from the AppleTV app sto= re?

Background: there are many threads in A/V circles regarding issues with App= leTV4K having trouble maintaining a steady Atmos audio stream while playing= 4K DolbyVision content.
I believe many of those glitches are likely due to poor networkQuality (at = the ATV), but need a test to prove it.

I have two ATV4Ks, and play plenty of DV/Atmos content, and rarely (never?)= have an audio glitch. But then, both are wired, and I have high RPM on my = network.

Thanks,

Jonathan Foulkes
_______________________________________________
Rpm mailing list
Rpm@lists.bufferbloat.net
https://lists.buffer= bloat.net/listinfo/rpm
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