1 Reply Latest reply on Apr 16, 2018 12:32 PM by Intel Corporation

    Intel(R) Dual Band Wireless-AC 3165 limited speed

    sdunhom

      I recently updated my ISP from 250Mbps to 1Gbps.

       

      Mobile devices are now achieving 300+Mbps connections using speedtest.net

       

      My Dell Inspiron 15 7000 Gaming laptop is only achieving 131.49Mbps, which is about the same as prior to the ISP and modem update.

       

      I have updated to the latest intel drivers. I have enabled U-APSD support. There are no device priorities configured in the ISP modem.

       

      Here is the netsh wlan show interface:

       

      netsh wlan show interface

       

      There is 1 interface on the system:

       

          Name                   : Wi-Fi

          Description            : Intel(R) Dual Band Wireless-AC 3165

          GUID                   : 654901e8-f155-481a-8ea2-f619835a9070

          Physical address       : f8:34:41:2b:1a:ab

          State                  : connected

          SSID                   : Munzee

          BSSID                  : a8:9f:ec:22:6c:8d

          Network type           : Infrastructure

          Radio type             : 802.11ac

          Authentication         : WPA2-Personal

          Cipher                 : CCMP

          Connection mode        : Auto Connect

          Channel                : 48

          Receive rate (Mbps)    : 351

          Transmit rate (Mbps)   : 351

          Signal                 : 99%

          Profile                : Munzee

       

          Hosted network status  : Not available

       

      I am attaching the latest SSU scan.

        • 1. Re: Intel(R) Dual Band Wireless-AC 3165 limited speed
          Intel Corporation
          This message was posted on behalf of Intel Corporation

          Hello sdunhom,

           

          We understand you have recently upgraded your Internet service speed, and are able to accomplish better download speeds from all connected devices except for your laptop using the Intel® Dual Band Wireless-AC 3165.

           

          It's important to note that this adapter is mainly intended for productivity, not high performance usage, as it uses a 1x1 antenna configuration (one antenna supporting one data stream). Other devices on your network may use the more common 2x2 antenna configuration, allowing for better download speeds (throughput).

           

          Looking at the reports you've shared, it seems your adapter is not communicating with your router at it's theoretical maximum of 433 Mbps, but it's not terribly far from it.

           

          Adapter: Intel® Dual Band Wireless-AC 3165 (1x1)
          PROSet\Wireless Software: Version 20.40.0
          Driver: 19.51.11.2

           

          Security: WPA2-Personal CCMP
          Radio: 802.11ac
          Band: 5 GHz
          Channel: 48
          Signal: 99%
          Rx/Tx Rate: ~ 325 to 351 Mbps

           

          The main difference between connection (receive/transmit) rates and download speed, is that download speed is a simple average measuring how fast a small file is downloaded from the test server. Download speed does not account for network overhead and environmental factors such as routing, encryption, RF interference, and user congestion. Your connection rate, on the other hand, measures the overall speed at which you're currently able to transmit data between your computer and your router.

           

          Your maximum download speed can be roughly estimated at around half (~50 to 60%) of your connection rate. Depending on your wireless router, user congestion will have a greater or smaller impact on user experience.

           

          Here we can make the following recommendations:

           

          1. Modify the following advanced adapter settings
            1. Channel Width for 2.4 GHz: 20 MHz
            2. Channel Width for 5 GHz: Auto (your current setting)
            3. Roaming Aggressiveness: 1. Lowest
            4. U-APSD Support: Disabled. (This is a power saving feature, aimed at VoIP users, it may limit performance in favor of battery life).
          2. For your router: 
            1. Manually set your wireless channel, choosing a different non-overlapping, non-DFS (dynamic frequency selection) channel such as: 36, 40, 44, 149, 153, 157, or 161.
            2. Make sure that your router is running on the latest firmware available.
            3. If your router has QoS (quality of service) options, test by enabling or disabling and see when your system works best.

           

          Please let us know if this helps.

           

          Best regards,
          Carlos A.