Windows 10: Slow download speeds using External Win2USB SSD

Discus and support Slow download speeds using External Win2USB SSD in Windows 10 Network and Sharing to solve the problem; Hello, Every time I fresh install windows 10 on to my external SSD for gaming, the download speeds are fine around 12/mb (should be getting 15mb/s).... Discussion in 'Windows 10 Network and Sharing' started by dracarys, Nov 10, 2020.

  1. dracarys Win User

    Slow download speeds using External Win2USB SSD


    Hello,

    Every time I fresh install windows 10 on to my external SSD for gaming, the download speeds are fine around 12/mb (should be getting 15mb/s). After a few weeks, it just stops working. This is an issue specifically with External windows. My main NVMe drives are fine. Some points:

    1. Downloads are now capped at 1 - 1.4mb/s, opposed to 15mb/s, from any vendor, STEAM, google drive, etc.
    2. Sometimes, when I connected to my neighbors wifi, then switch back, it resolves. But not anymore.
    3. This is a samsung pro 840 ssd via usb 3.0.
    4. MSI GS66 laptop with 6core and 2070

    Before you ask me to check my router, internet connections, drive, cables, etc, that is NOT the issue. All other computers in the house download fine, including this laptops main NVMe SSD. It's Windows being on an external drive. When I asked other forums for help, their answer is always "External Windows is no longer supported, it's pretty much just glitchy and broken".

    Anyway, if you guys solve this, you're seriously geniuses. This laptop is for work so I like to have my games on a portable SSD.

    Thanks Slow download speeds using External Win2USB SSD :)

    :)
     
    dracarys, Nov 10, 2020
    #1
  2. Portugal Win User

    Slow download speed after creating Hyper-V External Virtual Switch

    Hello.
    After buying a new PC (its specs are on my profile), enabling Hyper-V and creating a new External Virtual Switch, I notice that the download speed drops dramatically. My internet conneciton is 1Gbps down and 200Mbps up.

    Without External Virtual Switch:

    Slow download speeds using External Win2USB SSD [​IMG]


    • Iperf with a host on the same LAN (upload 911Mbps, download 777Mbps):

    Slow download speeds using External Win2USB SSD [​IMG]


    Slow download speeds using External Win2USB SSD [​IMG]



    • Lan Speed test (746 Mbps upload and 716 Mbps download):

    Slow download speeds using External Win2USB SSD [​IMG]


    With External Virtual Switch:

    • CPU usage while on Speedtest (notice the first core is fully maxed out):

    Slow download speeds using External Win2USB SSD [​IMG]


    • Lan Speed Test (742 Mbps upload and 596Mbps download):

    Slow download speeds using External Win2USB SSD [​IMG]


    • Iperf with a host on the same LAN (upload 861 Mbps, download 583 Mbps):

    Slow download speeds using External Win2USB SSD [​IMG]


    Slow download speeds using External Win2USB SSD [​IMG]


    • CPU usage while on Iperf (download) - Notice, once again, Core 1 fully maxed out​:

    Slow download speeds using External Win2USB SSD [​IMG]



    Conclusion

    When the External Virtual Switch is enabled, I assume the download speed is lower due to the fact one CPU core is being maxed out, my question is why? Why isn't the load spread throughout the cores?
    Is anyone experiencing a similar issue?

    Regards.
     
    Portugal, Nov 10, 2020
    #2
  3. cereberus Win User
    Slow download speed after creating Hyper-V External Virtual Switch

    Have you set the number of cores to 8 in hyer-v settings (virtual processor). No idea otherwise.
     
    cereberus, Nov 10, 2020
    #3
  4. Slow download speeds using External Win2USB SSD

    Slow downloading speed

    Hi Manthan,

    Regarding your download speed issue, we found a suggestion given by Eeshwar Kumar on our Community page. You can check this link on the suggestion he provided:

    Why is Windows Store's download speed so slow?


    Let us know if you need further assistance.
     
    Anthony Gal, Nov 10, 2020
    #4
Thema:

Slow download speeds using External Win2USB SSD

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