Why my internet speed test got only 4xx Mbps?

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bthoven
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Joined: 23 Sep 2019
Posts: 16

PostPosted: Sat Nov 23, 2019 2:33    Post subject: Why my internet speed test got only 4xx Mbps? Reply with quote
My dd-wrt wireless status tab showed the transmission speed of my iPad Air 2 is 866Mbps, but when I speed test my iPad Air 2, I always got only a bit above 400Mbps. My internet speed is 1000/100Mbps. I also speed test from my wired desktop and always get internet download speed over 700Mbps.

Is it normal or I have to set up more parameter on dd-wrt?

Wifi AP: Archer C9v1
dd-wrt: r41027
Router: pfSense



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ACwifidude
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Joined: 18 Mar 2019
Posts: 55

PostPosted: Sat Nov 23, 2019 3:36    Post subject: Reply with quote
https://www.duckware.com/tech/wifi-in-the-us.html

Great read on the topic. 866 is the PHY rate. Wifi has significant overhead and radio particulars that affect your actual speed. Wifi 5 (AC) is good to 300-500 mbps under ideal conditions with 80mhz and a 2x2 client.

The wifi speed being less than what it is capable of is predominately a software issue. Here is an example project of people tackling the exact issue: https://www.bufferbloat.net/projects/make-wifi-fast/wiki/

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Last edited by ACwifidude on Sat Nov 23, 2019 4:00; edited 1 time in total
kernel-panic69
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Joined: 08 May 2018
Posts: 2686
Location: Texas, USA

PostPosted: Sat Nov 23, 2019 3:44    Post subject: Reply with quote
ACwifidude wrote:
https://www.duckware.com/tech/wifi-in-the-us.html

Great read on the topic. 866 is the PHY rate. Wifi has significant overhead and radio particulars that affect your actual speed. Wifi 5 (AC) is good to 300-500 mbps under ideal conditions with 80mhz and a 2x2 client.


This sums up what I was going to respond with. "Don't go by the numbers in the webUI, because they are bullsh*t". I could go further, but that's enough.

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Alozaros
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Joined: 16 Nov 2015
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Location: UK, London, just across the river..

PostPosted: Sat Nov 23, 2019 6:50    Post subject: Reply with quote
Archer C9v1 has a dual core at 1ghz and this is its
max WAN performance you wont get more than 400Mbit...
try turning ON SFE, but i doubt you will get further
than its max speed, kind of....
to utilise a Gig WAN speed you'd need a R7800...

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TP-Link WR740Nv1 ------DD-WRT 33772 BS WAP/Switch (wired)
TP-Link WR1043NDv2 ----DD-WRT 41659 BS (AP,PPPoE,NAT,AD Blocking,AP Isolation,Firewall,Local DNS,Forced DNS,DoT, VPN)
TP-Link WR1043NDv2 ----DD-WRT 41686 BS (AP,NAT,AD Blocking,Firewall,Wi-Fi OFF,Local DNS,Forced DNS,DoT, VPN)
TP-Link WR1043NDv2 ----Gargoyle OS 1.11.0 (AP,NAT,QoS,Quotas)
Qualcomm/IPQ8065
Netgear R7800 -------DD-WRT 41686 BS (AP,NAT,AD-Blocking,AP&Net Isolation,VLAN's,Firewall,Local DNS,DoT,VPN)
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Netgear R7000 -------DD-WRT 40270M Kong (AP,NAT,VLAN,AD-Blocking,Firewall,Local DNS,Forced DNS,DoT)
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bthoven
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Joined: 23 Sep 2019
Posts: 16

PostPosted: Sun Nov 24, 2019 0:15    Post subject: Reply with quote
Thank you everyone for your replies.
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