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RMadi1
Beginner
9,465 Views

Slow wireless speeds with Intel 8265 ac card under windows 10

We have 2 Dell laptops (Latitude 7490 & 5580). Both have the Intel 8265 ac wireless card installed. Both are running windows 10.

Both have been experiencing extremely slow wireless download speeds. By slow I mean less than 1mb down. Upload speeds appear to be fine. This problem occurs on any wireless network (users homes, our work, Starbucks, etc.).

Changing the MTU from 1500 to 1400 on the card worked for about a week, Now their speeds are slow yet again.

Wired internet works fine.

Dell replaced one of the wireless cards and the speeds are still slow.slow.

Both are using the latest Intel drivers.

0 Kudos
32 Replies
idata
Community Manager
1,855 Views

Hello robmad92009,

 

 

Thank you for joining this Intel Community.

 

 

Slow download speeds can be caused by Windows* updates, system configuration, and even hardware. In order to get more information about this issue, I would like to know if this is an out-of-box issue.

 

 

-How long had the systems been running when the problem occurred?

 

-Do the computers experience this issue if you install the drivers provided by the system manufacturer?

 

 

In this case, you can try performing a https://www.intel.com/content/www/us/en/support/articles/000022173/network-and-i-o/wireless-networki... clean installation of the Wireless Drivers.

 

 

Latitude 7490

 

Version: https://www.dell.com/support/home/us/en/04/product-support/product/latitude-14-7490-laptop/drivers 20.50.0.8334 ,A14

 

 

Latitude 5580

 

Version:https://www.dell.com/support/home/us/en/04/product-support/product/latitude-15-5580-laptop/drivers 20.50.0.8334 ,A14

 

 

**Please confirm the system models and operating systems.

 

 

In addition, you can apply the https://www.intel.com/content/www/us/en/support/articles/000024678/network-and-i-o/wireless-networki... Recommended Settings for 802.11ac Connectivity.

 

 

Wanner G.
ОПопо
Beginner
1,855 Views

I also have a problem with the speed of wifi. I updated windows 10 to version 1809 and started having problems. Also not connected at 5GHz.

idata
Community Manager
1,855 Views

Hello Mehanik,

 

 

Thank you for joining this Intel Community.

 

 

Please describe the issue a little bit more.

 

 

Also, we would like to take a look at your system configuration. Please run the Intel® System Support Utility and attach the report to this thread.

 

 

1.Download the Intel® System Support Utility and save the application to your system.

 

https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows-?product=91...

 

2.Open the application and click Scan to see system and device information. The Intel® System Support Utility defaults to the Summary View on the output screen following the scan. Click the menu where it says summary to change to Detailed View.

 

3.To save your scan, click Next and click Save. You can save the file to any accessible location on your computer.

 

 

To attach a file, you must click "Use Advanced Editor" on the upper right hand corner of the response box, then the "attach" option will appear on the bottom right hand corner of the response box.

 

 

Wanner G.

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
ОПопо
Beginner
1,855 Views

Low speed wifi, sometimes drops to 1 Mbps. Not connected to 5 GHz

idata
Community Manager
1,855 Views

Hello Mehanik,

 

 

Thank you for your response.

 

 

Since this issue is impacting several devices, we will do further research about it.

 

 

We will get back to you soon.

 

 

Wanner G.

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
ОПопо
Beginner
715 Views

Driver version 20.70.3.3 fixed the problem. At the moment it works fine.

RMadi1
Beginner
715 Views

How long have you been using that driver? In my experience, installing a new driver worked for about a day or so. Then the issue would return.

ОПопо
Beginner
715 Views

I use this driver for 3 days.

idata
Community Manager
1,855 Views

Hello robmad92009,

 

 

Were you able to perform the steps recommended?

 

 

Wanner G.

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
RMadi1
Beginner
1,855 Views

Clean installs have already been done with the latest drivers. Issue is still the same. There is no correlation as to how long the systems have been running when this issue occurs.

Users have no background updates running.

Both systems are running Windows 10 Pro with the latest updates installed.

What seems to have worked (for the moment) was downloading this from Microsoft:

https://aka.ms/diag_cssemerg11005 https://aka.ms/diag_cssemerg11005

I say "for the moment" because Microsoft could push out an update that will break it again.

idata
Community Manager
1,855 Views

Hello robmad92009,

 

 

Based on the troubleshooting performed, you can try these steps if the issue persists:

 

 

1. If this issue started happening after installing the latest wireless driver, you can roll back the wireless driver. If a Windows* update included an updated driver, rolling back the driver to a previous version may resolve these issues.

 

 

2. If you are using Windows 10 Insider Preview builds, you may experience different issues including poor performance.

 

 

3. You can also check the Windows* Power Management for the wireless adapter.

 

 

4. This could be an issue with the access point. Check if disabling uAPSD in the Adapter Properties improves this issue.

 

 

Wanner G.

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
idata
Community Manager
1,855 Views

Hello robmad92009,

 

 

Were you able to check the information provided above?

 

 

Wanner G.

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
RMadi1
Beginner
1,855 Views

These issues have nothing to do with a specific access point as it happens at every location these laptops are used.

I have checked all settings all seem normal.

In addition to the two systems having this issue, two more laptops have slow download speeds. One is a Latitude To recap:

The problem is occurring on 2 Latitude 5580's, 1 Latitude 5480 and 1 Latitude 7490.

These systems have Intel 8265 ac cards installed.

These systems are running with the latest Intel drivers.

There are no update processes running in the background.

All are running Windows 10 Pro, with latest updates installed.

It does not matter where these systems use WiFi.

So far, the only "fix" I have can be found here:

https://aka.ms/diag_cssemerg11005 https://aka.ms/diag_cssemerg11005

I'm "cautiously optimistic" this fix will work moving forward.

idata
Community Manager
1,855 Views

Hello robmad92009,

 

 

We will do research about this issue.

 

 

We will get back to you soon.

 

 

Wanner G.

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
idata
Community Manager
1,855 Views

Hello all,

 

 

Please fill out the following information. It will be really helpful to address this issue properly.

 

 

Computer manufacturer(s):

 

Computer model(s):

 

Windows OS (provide Version number if Win10, and 32- or 64-bit):

 

WiFi configuration manager (e.g. Intel PROSet, Windows AutoConfig (native), etc.):

 

WiFi adapter model(s):

 

WiFi device driver version:

 

Number of systems affected:

 

 

Wireless security method

 

Encryption Type (Open, RC4, TKIP, AES):

 

802.1X authentication type (WEP, TKIP, CCMP):

 

Key Management Type (PEAP, EAP-FAST):

 

 

WiFi network environment

 

Access Point manufacturer, model, & SW version:

 

Wireless Frequencies in use (2.4 and/or 5 GHz):

 

802.11n or 802.11ac enabled (None/HT(11n)/VHT(11ac)):

 

Channel Width (20 MHz vs. 40 MHz) for 2.4 GHz?

 

Channel Width (20 MHz vs. 40 MHz vs. 80MHz) for 5 GHz?

 

SSID stealth mode (hidden or broadcast):

 

 

Wanner G.

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
RMadi1
Beginner
1,855 Views

Computer manufacturer(s): Dell

Computer model(s): Latitude 5580 (x2), 5480, 7490

Windows OS (provide Version number if Win10, and 32- or 64-bit): Windows 10 Pro

WiFi configuration manager (e.g. Intel PROSet, Windows AutoConfig (native), etc.): PROSet

WiFi adapter model(s): Intel Dual Band Wireless AC 8265

WiFi device driver version: 20.70.1.1

Number of systems affected: 4, at the moment.

Wireless security method

Encryption Type (Open, RC4, TKIP, AES): WPA2-PSK [AES]

802.1X authentication type (WEP, TKIP, CCMP): WPA2-PSK [AES]

Key Management Type (PEAP, EAP-FAST): Have no idea

WiFi network environment

Access Point manufacturer, model, & SW version: Various: Ubiquity, Netgear, Cox (built in wireless), Frontier (Verizon), Spectrum (built in wireless)

Wireless Frequencies in use (2.4 and/or 5 GHz): Varies, in some locations both. Others, 2.4GHZ

802.11n or 802.11ac enabled (None/HT(11n)/VHT(11ac)): 802.11ac enabled

Channel Width (20 MHz vs. 40 MHz) for 2.4 GHz? Varies by location.

Channel Width (20 MHz vs. 40 MHz vs. 80MHz) for 5 GHz? Varies by location.

SSID stealth mode (hidden or broadcast): broadcast

These questions were somewhat difficult to answer. End users are having the issue on their home networks & public WiFi.

idata
Community Manager
1,855 Views

Hello robmad92009,

 

 

Thank you for your response.

 

 

We will do further research about this issue. We will get back to you soon.

 

 

Wanner G.

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
LKean
Beginner
1,855 Views

I having same problem on my internet speed which very bad download speed and good upload speed,

 

my download speed only hit about 5mbps while upload speed 40mbps ,

i have try to update my wifi driver from 20.50.0.4 > 20.80.0 ,

still happens the same result.

 

Computer manufacturer(s): Dell 

Computer model(s): Inspiron 15 7577

Windows OS (provide Version number if Win10, and 32- or 64-bit): Windows 10 Home single Language 64-bit version 1803

WiFi configuration manager (e.g. Intel PROSet, Windows AutoConfig (native), etc.): Intel PROSet

WiFi adapter model(s): Intel Dual Band Wireless AC 8265

WiFi device driver version: 20.50.0.4 / 20.80.0 (both driver version having same problem) 

Number of systems affected: 1, at the moment.

Wireless security method

Encryption Type (Open, RC4, TKIP, AES): WPA2-PSK [TKIP+AES]

802.1X authentication type (WEP, TKIP, CCMP): WPA2-PSK [AES]

Key Management Type (PEAP, EAP-FAST): - 

WiFi network environment

Access Point manufacturer, model, & SW version: Various: Huawei HG253s sw:V100R001C245B013

Wireless Frequencies in use (2.4 and/or 5 GHz): 2.4GHZ

802.11n or 802.11ac enabled (None/HT(11n)/VHT(11ac)): -

Channel Width (20 MHz vs. 40 MHz) for 2.4 GHz? 20MHz 

Channel Width (20 MHz vs. 40 MHz vs. 80MHz) for 5 GHz? -

SSID stealth mode (hidden or broadcast): broadcast

MMESS3
Beginner
1,855 Views

Hi. I have this same issue:

Laptop Dell Inspiron 7773

Wi-Fi Intel® Dual Band Wireless-AC 3165

Windows 10

I'm using hotspot on my mobile phone and internet is working just for 5 seconds and freeze for 1 minute and this looping again. When website is loading and I press Wi-Fi icon on task bar then website is loaded with full speed. Seems like Wi-Fi card is switching off by itself. I'm testing this card on Debian and working without any problem. No disconnection or freeze.

idata
Community Manager
1,855 Views

Hello keanboon,

 

 

Thank you for your response.

 

 

We will get back to you soon.

 

 

MESWEB

 

 

Thank you for joining this Intel Community.

 

 

The issue described above is different. Please submit a new question.

 

 

We will be glad to help you.

 

 

Wanner G.

 

Intel Customer Support Technician

 

Under Contract to Intel Corporation
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