Lost connection with iphone

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xl600
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Joined: 04 Dec 2019
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PostPosted: Sat Jan 16, 2021 21:44    Post subject: Reply with quote
gospeedgo wrote:
Someone has tested the r45229 with apple devices?


I just tried 45454, and could cause the stall in data using the same speed test approach as earlier builds on my WRT3200ACM. What was weird, that I don’t think I noticed before, was that when I ran the tests on my iPhone 11, the 5G WiFi also stalled on my iPad. I don’t have any non-Apple WiFi devices so I think the stall is just the router stopping data flow over the WiFi outright. Again, no errors or clues in the logs.
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gospeedgo
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Joined: 23 Jul 2018
Posts: 146
Location: Italy

PostPosted: Sat Jan 16, 2021 22:54    Post subject: Reply with quote
Thanks, so still nothing, there isn't a version after 44048 that doesn't have wifi problems with apple devices! what a pity!
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Linksys WRT3200ACM AP 1
Linksys WRT3200ACM AP 2 + WDS AP
Linksys WRT3200ACM WDS STATION + WDS VAP
DD-WRT Version: r48494
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pbphoto
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Joined: 29 Oct 2017
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PostPosted: Sun Jan 17, 2021 0:03    Post subject: Reply with quote
Agreed - if you have Apple devices, stay with 44048 for now.
gospeedgo
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Joined: 23 Jul 2018
Posts: 146
Location: Italy

PostPosted: Sun Jan 17, 2021 6:59    Post subject: Reply with quote
of course !!!
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Linksys WRT3200ACM AP 1
Linksys WRT3200ACM AP 2 + WDS AP
Linksys WRT3200ACM WDS STATION + WDS VAP
DD-WRT Version: r48494
OpenVPN Server
OpenVPN Client
Cloudflare
Express VPN
Raspberry Pi-hole
greatmoo
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Joined: 02 Sep 2007
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PostPosted: Sun Jan 17, 2021 7:29    Post subject: Reply with quote
I'm having lots of issues with iPhone/iPad connections past build 44048 too. The Apple devices are able to connect to the router and has internet for the first 15-20 minutes. After that, it completely loses internet connection despite still being connected on WiFi.

WRT1900ACSV2
gospeedgo
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Joined: 23 Jul 2018
Posts: 146
Location: Italy

PostPosted: Sun Jan 17, 2021 7:47    Post subject: Reply with quote
yes indeed it is! unfortunately, those who have apple devices must stop at the 44048 version!
_________________
Linksys WRT3200ACM AP 1
Linksys WRT3200ACM AP 2 + WDS AP
Linksys WRT3200ACM WDS STATION + WDS VAP
DD-WRT Version: r48494
OpenVPN Server
OpenVPN Client
Cloudflare
Express VPN
Raspberry Pi-hole
roland90
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Joined: 22 Oct 2015
Posts: 123

PostPosted: Sun Jan 17, 2021 22:37    Post subject: Reply with quote
I'm using r44849 with android but this version is also unreliable for mobiles, I don't know why. 1900acs v2
ArminasK
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Joined: 21 Jan 2021
Posts: 15

PostPosted: Thu Jan 21, 2021 11:53    Post subject: Reply with quote
Hi,

Confirming same issue on b44048 and later builds (d-link dir-632).
These are my settings:

Could you please share your 2.4 ghz settings that works for iphones/ipads on build 44048. There might be some strange setting' fault I believe.

Thanks
xl600
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Joined: 04 Dec 2019
Posts: 27

PostPosted: Sun Jan 24, 2021 21:27    Post subject: Reply with quote
Perhaps I’m imagining things, but I just tried a hint I saw on one of the recent release threads.

I have been using 45454 for about a week and suffering through the data stalls since I’m worried about using 44048 and the older dnsmasq (dnspooq vulnerability). So I tried setting my 5Ghz to auto channel width and auto channel. I had been using VHT80 and channel 140-lower for the longest time.

About 20 speed tests in so far and it’s been stable. Yes, I have half the previous bandwidth (300mbps up/down to internal servers) but it seems stable. For iPhones and iPads, I can live with that. Everything else I have is wired directly.

Is there something to this or am I just in denial?
pbphoto
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Joined: 29 Oct 2017
Posts: 258

PostPosted: Mon Jan 25, 2021 2:19    Post subject: Reply with quote
I tried 45454 on my 1900ACS - wireless mode=mixed, channel width=dynamic, wireless channel=auto. No luck for me. Everyone in the house attached to the wifi with an Apple device started bitchin' at me in unison. Back to 44048.
ArminasK
DD-WRT Novice


Joined: 21 Jan 2021
Posts: 15

PostPosted: Mon Feb 01, 2021 21:30    Post subject: Reply with quote
What DTIM value do you guys use for 44048 builds?
I do lost connection with an iPad with Beacon 100/ DTIM 1.

Testing now with DTIM 3 and beacon 100.
pbphoto
DD-WRT User


Joined: 29 Oct 2017
Posts: 258

PostPosted: Mon Feb 01, 2021 22:03    Post subject: Reply with quote
ArminasK wrote:
What DTIM value do you guys use for 44048 builds?
I do lost connection with an iPad with Beacon 100/ DTIM 1.

Testing now with DTIM 3 and beacon 100.


BI = 100, DTIM = 2 - these have been good in my environment with 44048 and earlier. I noticed the wiki has been updated to try BI of 300 or 400 with a DTIM of 1. I tried these on the newest releases but it did not help, so I fell back to 44048 with BI=100 and DTIM=2.
Argenis
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Joined: 18 Feb 2019
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PostPosted: Fri Feb 05, 2021 6:58    Post subject: Reply with quote
I don't know if this will help anyone, but I've not been having Apple device issues, but the only recent device I honestly have from Apple is a 2018 MBP. All other Apple devices are older on my household (AppleTV before 4K, iPhone 7, iPod Touch).

My settings are in my signature, but in addition to that, make sure to go to the wireless security section, change the preshared key of the wifi to something simple, then disable it, then re-enable it with only WPA2 CCMP 128, and then lastly reboot, put the pre-shared key you wanted, save, apply, and reboot again.

That last thing has bitten me before, I don't know if that's a DDWRT issue, or a driver issue, but Crypto is very finicky.

In addition to that, those that have multiple routers in their home, especially multiple DDWRT routers, you all need to set up RTS/CTS at varying values on the same antennas, so as to not run into collision issues (though not too high as to affect speeds/latency):
https://en.wikipedia.org/wiki/IEEE_802.11_RTS/CTS

_________________
Router: Linksys WRT3200ACM WLAN0 and 1 have same SSID
88W8964 802.11ac WLAN0 Mode AP VHT80 80MHz Mixed Mode Channel and Extension Channel Auto Extension LL-6
88W8964 802.11ac WLAN1 Mode AP 20 MHz Mixed Mode Channel Auto
SD8887 802.11ac disabled but visible on GUI and CLI
TX Power 18 dBm
Antenna Gain 0 dBi
U-APSD (Automatic Power Save)Enabled 
Protection Mode None
RTS Threshold Disabled
Short Preamble Disabled 
Short GI Enabled
Single User Beamforming Enabled
Multi User Beamforming Enabled 
AP Isolation Disabled
Beacon Interval 100
DTIM Interval 2
WMM Support Enabled 
Radar Detection Disabled 
ScanList default
Sensitivity Range (ACK Timing) 500 (Default: 500 meters)
Max Associated Clients 256 (Default: 256 Clients)
Minimum Signal for authenticate -128
Minimum Signal for connection -128
Poll Time for signal lookup 10
Amount of allowed low signals 3
Wireless security is WPA2 Personal CCMP-128 only
QAM256 is on
ArminasK
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Joined: 21 Jan 2021
Posts: 15

PostPosted: Fri Feb 05, 2021 20:41    Post subject: Reply with quote
@pbphoto

Could you please share your 2.4gz wifi settings of 44048 build?

I still do get issues with apple devices and maybe I am missing something there.

Thanks
pbphoto
DD-WRT User


Joined: 29 Oct 2017
Posts: 258

PostPosted: Fri Feb 05, 2021 22:13    Post subject: Reply with quote
Here are my settings.

1900ACSv1:

5GHz ATH0
Wireless Mode AP
Wireless Network Mode AC/N-Mixed
Channel Width VHT80 (80 Mhz)
Wireless Channel 36 - 5180 MHz
Extension Channel UU (+6)
Allow Channel Overlapping Disable
Wireless Network Name (SSID) XXXXX
Wireless SSID Broadcast Enable

2.4GHz ATH1
Wireless Mode AP
Wireless Network Mode NG-mixed
Channel Width Full (20 MHz)
Wireless Channel 11 - 2462 MHz
TurboQAM (QAM256) support Disable 
Wireless Network Name (SSID) XXXXX
Wireless SSID Broadcast Enable

Advanced Settings (same for both antennas)
TX Power 30 dBm
Antenna Gain 0 dBi
U-APSD (Automatic Power Save) Disable 
Protection Mode RTS/CTS
RTS Threshold Enable
Threshold 980
Short Preamble Enable 
Short GI Enable
Single User Beamforming Enable (5GHz only)
AP Isolation Disable 
Beacon Interval 100
DTIM Interval 2
WMM Support Enable
ScanList default
Sensitivity Range (ACK Timing) 0
Max Associated Clients 256
Drop Clients with Low Signal
Minimum Signal for authenticate -96
Minimum Signal for connection -96
Poll Time for signal lookup 10
Amount of allowed low signals 3
Multicast To Unicast Disable 
Network Configuration Bridged
Radio Time Restrictions
Radio Scheduling Disable

Same settings on my 3200ACM except I have multi-user beaming forming disabled and ath2 disabled.
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