Windows 10: LAN transfer speed slow

Discus and support LAN transfer speed slow in Windows 10 Network and Sharing to solve the problem; I'm copying large amount of files from another PC, about 40gb, but the speed is quite slow, about 25-30 MB/s despite I have a Gigabit router. So far... Discussion in 'Windows 10 Network and Sharing' started by owem, Dec 15, 2020.

  1. OWEM
    owem Win User

    LAN transfer speed slow


    I'm copying large amount of files from another PC, about 40gb, but the speed is quite slow, about 25-30 MB/s despite I have a Gigabit router.

    So far I've tried disabling LSO on one PC, the other PC don't have that options. Also I disabled global autotuning on both PC. Then restart the PC.

    At first after applying those tips, I got transfer speed about 90MB/s but then it becomes slow the same as before applying those tips, about 25-30 MB/s.

    Also I tried restarting the router with 10 minutes delay before I turn back on.

    Any tips highly appreciated. Thank you

    :)
     
    owem, Dec 15, 2020
    #1
  2. DOC89
    doc89 Win User

    LAN Network Slow speeds


    update, problem fix with the following. Thanks 100MB/s on large files

     
    doc89, Dec 15, 2020
    #2
  3. JIMBO45
    jimbo45 Win User
    Ridiculously slow transfer speeds

    Hi there

    @Lequarius

    1) try and remove any sort of optimising off an SSD drive - these don't need it - especially with that CPU you have
    2) disable all A/V (Anti Virus software) apart from WD (Windows defender).

    The other thing is that HDD transfer is highly dependent on the RPM speed and cache size of the HDD -- don't worry about the SSD - it has no moving parts and speed is light years faster than typical classical HDD's anyway.

    If you've got slow RPM disks with a small cache size you'll get hideously slow transfer even if you had the fastest cray supercomputer on the planet with the fastest I/O bus around.

    HDD's should be at least 7200 RPM or even better at 10,000 RPM with the largest possible cache size. A slow 5400 RPM HDD (probably what your 2TB disk is with a tiny cache) -- will make a system run as slow as molasses for data transfer !!!!

    Without knowing more about the physical engineering specs of that machine I can't suggest anything else -- but you should be getting normally at least 300 - 500 Mb/s transfer speeds on average. I assume its direct file transfer and not over a LAN or wifi.

    Cheers
    jimbo
     
    jimbo45, Dec 15, 2020
    #3
  4. E FOR EXCEL
    E for Excel Win User

    LAN transfer speed slow

    E for Excel, Dec 15, 2020
    #4
Thema:

LAN transfer speed slow

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