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Terrible SNR on iPhone devices

Hardware: single eero 6 (I have two but trying one at a time for troubleshooting).

Topology: ISP router -> switch -> single eero in double-NAT mode (for testing purposes - issue was so bad I've had to remove eeros from my main network).

Symptoms:

iPhones constantly flip WiFi Calling off/on only when connected to eero network.

Issue:

TLDR version: the following devices have terrible SNR, even right next to the eero:

iPhone 12, iPhone 11, iPhone 13, iPhone 13 Pro, iPhone SE 2, M1 Macbook Pro, iPad mini 6th gen.

Other devices work fine:

6th Gen iPad, 2019 16" macbook pro.

 

Example console message from iPhone with terrible SNR right next to eero:

Dec 11 10:01:29 iPhone wifid(WiFiPolicy)[51] <Error>: LQM-WiFi: WeightAvgLQM rssi=-32 snr=4 txRate=875180 rxRate=1051581

 

Example console message from iPad (non mini) with decent SNR:

Dec 11 10:33:38 iPad wifidChannel: 149 Bandwidth: 80Mhz Rssi: -32 {-36 -32} Cca: 4 (S:0 O:0 I:0) Snr: 35 BcnPer: 8.3% (24, 51.6%) TxFrameCnt: 1 TxPer: 0.0% TxReTrans: 0 TxRetryRatio: 0.0% RxFrameCnt: 3 RxRetryFrames: 0 RxRetryRatio: 0.0% TxRate: 780000 RxRate: 866667 FBRate: 468000 TxFwFrms: 46 TxFwFail: 0 Noise: -88 {0 0 0} time: 14.8secs fgApp: com.apple.Preferences

 

Troubleshooting performed so far:

eeros have been set up from new. The poor SNR on iPhones is present on channel 36 (the default when factory reset) and channel 149 (which generally is chosen the next day).

All affected devices work fine on all other wireless systems.

Issue present on both eero 6 devices that I have.

I haven't yet tried the devices on another eero system, but will hopefully be able to try in the next few days.

 

Emailed support earlier today, no response so far.

 

This can't just be me. Anyone else?

1 reply

    • jg_eero
    • 11 mths ago
    • Reported - view

    Additional information that I forgot to add. This only seems to affect the 5Ghz radios. If I disable 5Ghz temporarily, then the SNR on the same M1 Macbook and iPhone jumps to decent values:

    Macbook:

    LQM-WIFI-CT: rssi=-33(-30 -29) snr=35 bcn=48(49) txFrames=258 txRetry=6 txRate=229410 rxFrames=295 rxRetry=7 rxRate=206470 rxToss=0

    iPhone:

    Dec 11 17:29:44 iPhone wifid(WiFiPolicy)[51] <Notice>:

    Channel: 11 Bandwidth: 40Mhz Rssi: -46 {-46 0} Cca: 6 (S:3 O:1 I:0) Snr: 35 BcnPer: 6.2% (48, 58.0%) TxFrameCnt: 172 TxPer: 0.0% TxReTrans: 1 TxRetryRatio: 0.6% RxFrameCnt: 111 RxRetryFrames: 0 RxRetryRatio: 0.0% TxRate: 229410 RxRate: 229410 FBRate: 137640 TxFwFrms: 15 TxFwFail: 0 Noise: -94 {-96 -94 2} time: 9.7secs fgApp: com.apple.WebKit.GPU
     

    Also, when switching off 5Ghz, Wifi Calling immediately comes on on the iPhone, and stays on.

     

    Once 2.4 only mode is turned back off, the SNR once again tanks:

    Macbook:

    LQM: rssi=-28dBm per_ant_rssi=(-30dBm, -28dBm) noise=-90dBm snr=11 cca=0.0% ccaSelfTotal=0 ccaOtherTotal=0 interferenceTotal=0 txRate=1201.0Mbps txFrames=9 txFail=0 txRetrans=0 txFallbackRate=720.6Mbps rxRate=1201.0Mbps rxFrames=10 rxRetryFrames=0 rxToss=0 beaconRecv=24 beaconSched=49 txFwFrames=54 txFwFail=0 txFwRetrans=0

     

    iPhone:

    Dec 11 17:32:07 iPhone wifid(WiFiPolicy)[51] <Notice>: __WiFiLQAMgrLogStats(Rascalnet Eero:Stationary): Channel: 149 Bandwidth: 80Mhz Rssi: -46 {-47 -42} Cca: 27 (S:0 O:0 I:0) Snr: 6 BcnPer: 0.0% (48, 50.3%) TxFrameCnt: 5 TxPer: 0.0% TxReTrans: 0 TxRetryRatio: 0.0% RxFrameCnt: 3 RxRetryFrames: 0 RxRetryRatio: 0.0% TxRate: 1080880 RxRate: 1200950 FBRate: 612500 TxFwFrms: 4 TxFwFail: 0 Noise: -88 {-88 -90 -2} time: 49.1secs fgApp: com.apple.Home.HomeControlService
     

Content aside

  • 11 mths agoLast active
  • 1Replies
  • 161Views
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