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We understand your situation regarding the low speed with the Intel® Dual Band Wireless-AC 8265.
Based on the SSU logs, it seems that all settings are properly set up in order to get the maximum speed you can reach, it means that the connection between the router and the adapter is the best possible(866.7Mbps in your case).
Based on that, we advise you to try with the latest OEM driver suggested by the manufacturer.
Please follow the next steps:
1.Get the latest system-specific driver from your computer manufacturer support.
2. Uninstall the Intel® PROSet/Wireless Software.a. Open Programs and Features (Uninstall a program) from the Control Panel.
b. Select Uninstall or Change and then Remove.
c. When prompted, choose to discard settings.
3. Uninstall your wireless driver. Windows* with an inbox driver may natively support some wireless adapters. You cannot uninstall an inbox driver. Proceed to the next step if you start seeing the same version of the driver installed automatically after it’s uninstalled.
a. Go to Device Manager.
b. Expand the Network Adapters category.
c. Right-click your Intel Wireless Adapter and choose to uninstall it.
d. Make sure to select the option to Delete the driver software for this device.
4. Clear out your temporary files.
a. Press the Windows* key and R key simultaneously to open the run box.
b. Type in: cleanmgr.exe and press the Enter key or OK.
c. Place a checkmark next to Temporary Files. You can leave everything else checked or unchecked.
d. Press OK and wait.
5. Reboot your computer.
6. Locate the driver you downloaded back in Step 1. Run as administrator and follow the wizard to completion.
7. (Optional Step) Apply the Recommended Settings for Wireless Connectivity.
In case the situation persists, we suggest you check the Quality of Service settings in your Router.
Please let us know if that works.
Hi Junior, so following your suggestions was an improvement for sure, now to push it into the 400Mbps realm... Unfortunately there isn't any option to adjust QoS settings as you've suggested with this ISP provided router, now when I think about that suggestion further I can't ignore the fact that my iPhone 6S Plus with arguably an inferior wireless NIC and absolutely no configuration settings at all is consistently hitting 400+Mbps without making any changes to the router... I would think that the fact we do have the ability to make changes in the 8265 driver settings that it would most certainly be more likely to achieve if nothing else the same as my non-configurable iPhone...
Based on the SSU logs, the connection between your router and the adapter is proper for the AC protocol( 866.7Mbps).
This could be related to Windows* updates, applications running in the background, cloud services.
Could you please try to access your computer in safe mode and let us know if you have the same results.
Start your PC in safe mode in Windows(R) 10 -support.microsoft.com
NOTE: Any links provided for third party tools or sites are offered for your convenience and should not be viewed as an endorsement by Intel® of the content, products, or services offered there. We do not offer support for any third party tool mentioned here.
We look forward to hearing back from you.