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ASUS N550JK-DS71T - slow download speed with wifi


PCL2014

New Member
Posts
6
#1
Hi,

I have a ASUS N550JK-DS71T laptop which has about half the download speed with wifi compared to a similar laptop (with a N-type wireless card) right next to it. So this issue is not due to ISP or router. Upload speed is fine.
I used speedtest.net.
Laptop has the INTEL AC 7260 wireless card with the latest driver on Asus website (V17.0.1.5).
I checked the power settings and they are on High Performance.
I have a N-router set to N.

Would you know any settings in BIOS, Windows, INTEL to check/change to fix this.

Any input is greatly appreciated!
 

My Computer

System One

  • OS
    Windows 8.1 64 bit

popeye

New Member
VIP Member
Guru
United States

Posts
3,090
#2

My Computer

System One

  • OS
    Windows 8.1 Pro 64-bit
    Computer type
    Laptop
    System Manufacturer/Model
    Acer V3 771G-6443
    CPU
    i5-3230m
    Motherboard
    Acer VA70_HC (U3E1)
    Memory
    8GB DDR3 PC3-12800 (800 MHz)
    Graphics Card(s)
    HD4000 + GeForce GT 730M
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    17" Generic PnP Display on Intel HD Graphics 4000
    Screen Resolution
    1600x900 pixels
    Hard Drives
    Samsung SSD 850 EVO 250 GB
    ADATA SSD SP900 128GB
    PSU
    90 watt brick
    Mouse
    Bluetooth
    Antivirus
    Comodo
    Other Info
    Asus RT-AC56R dual-band WRT router (Merlin firmware). Intel 7260.HMWWB.R dual-band ac wireless adapter.

broe23

Retired from the grind
VIP Member
Pro User
Central IL

Posts
3,468
#3
Another possibility is that the Wifi Access Point is not set for 40mhz Channel, and same for the adapter in the laptop is not set for auto. You have to have two channels for Wireless-N, to get the faster connect speeds.
 

My Computer

System One

  • OS
    Linux Mint 17.2
    Computer type
    Laptop
    System Manufacturer/Model
    Toshiba Satellite C850D-st3nx1
    CPU
    AMD E1-1200 APU with Radeon (tm) HD Graphics 1.40 GHZ
    Memory
    12GB
    Graphics Card(s)
    AMD Radeon™ HD 7310 Graphics
    Sound Card
    Realtek HD
    Monitor(s) Displays
    LCD
    Screen Resolution
    1366 x 768
    Hard Drives
    Crucial M500 240GB SSD
    Mouse
    Logitech M525
    Internet Speed
    45/6 - ATT U-Verse
    Browser
    Google Chrome
    Antivirus
    None needed. It is Linux.
    Other Info
    Arris NVG589 Gateway; Router - Cisco RV320; Switch - Netgear GS108 8-Port Switch & Trendnet TEG-S50g 5-Port Switch; Access Points - Engenius ECB350, Trendnet TEW-638APB; NAS - Lenovo ix2-4; Printer - Brother HL-2280DW; Air Print Server - Lantronix XPrintServer

    A/V UPS - Tripp-Lite Smart 1500LCD 1500 Va/900 W.

PCL2014

New Member
Posts
6
#4
My N-router is a D-Link DIR-615 (Hardware E1, Firmware Version : 5.00NA).
It has the latest firmware from 2009.
It is a single band type at 2.4 Ghz.
Here is a link to the manual:
ftp://ftp2.dlink.com/PRODUCTS/DIR-615/REVE/DIR-615_REVE_MANUAL_5.20_EN.PDF
On page 117, the specs list the wireless speed which are up to 108 Mbps.

I set it to:
- Auto 20/40Mhz (the other option is 20 Mhz, which I also tried)
- 802.11n only
- Channel 6 (I tried Auto and other channels too)
- WAP2
- AES

Both laptops (the Asus and a Dell E6240) have the same Wireless card settings in Device Manager.
They both have the Wireless Mode option to 6. 802.11a/b/g.
The only difference is that the Dell card has an extra setting called '802.11n mode' which is Enabled.
The Asus has the Intel AC 7260 card and the Dell has the Intel Centrino(R) Advanced-N-6205 card.

So it seems that the Intel AC 7260 card is not working well with my N-router. Would there be any settings to change to make the AC card works better with a N-Router?
I am now also considering getting a better/newer N-Router or even a "low-end" AC router like the Belkin AC 1200 DB Wi-Fi Dual-Band AC+ Router at around $100.

Also could there be an issue related to the fact that the Asus laptop is running Windows 8.1 as opposed to the Dell which runs Windows 7?
 

My Computer

System One

  • OS
    Windows 8.1 64 bit

PCL2014

New Member
Posts
6
#5
I bought a Netgear AC1200 R6100 wireless router and this fixed the issue. I now get about 30 Mbps for download (upload has not changed and is still around 11 Mpbs as expected) anywhere in the house! This is quite good since my internet plan with Comcast gives me 25 Mpbs.
It is possible that the issue could have also been fixed with a newer N-router but I have not tried it.

Note that when the battery is getting lower (lower than 30-40%) and when the wifi is set to 'Maximum Power Saving', the wifi speeds are significantly reduced! Down to a few Mpbs! Once the setting is changed to 'Maximum Performance' or plugged in, the wifi speeds are back to normal. While I understand that the wifi speeds would be reduced under 'Maximum Power Saving', I do think that they should not be allowed to go down so low and inconsistent: it was really hard to browse the Internet (got the error in the browser of 'no connection').

By the way, I use the latest Intel AC 7260 driver: 17.0.6.
 

My Computer

System One

  • OS
    Windows 8.1 64 bit

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