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  1. #1
    DF VIP Member
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    Help Slow LAN transfer speed after upgrading network switch.

    Needed more network ports so upgraded from a Netgear GS108E 8 port switch to a TP-Link SG116 16 port switch. Both switches are unmanaged Gigabit switches.

    When transferring images to my NAS, the speed with the TP-Link switch is an abysmal 355 KB/sec. Swapped back to the Netgear with exactly same connections plugged in and its up to 7.25 MB/sec. With no changes to anything else, I swapped between the TP-Link and Netgear a few times and it was always the same.
    Nothing to configure with unmanaged switches so would expect both to transfer files at a similar speed.

    Got a few days left to return the TP-Link switch to Amazon, so hoping for some advice as to what could be the cause if it isnít a faulty switch? (">

    First capture is TP-Link. Second one is Netgear.


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  2. #2
    DF Super Moderator Teajunkie's Avatar
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    Default Re: Slow LAN transfer speed after upgrading network switch.

    That’s bloody awful is there a firewall or something built into the switch!
    Instagram and twitter @mrteajunkie.

    Thanks to Teajunkie

    BigBird (4th August 2019) 


  3. #3
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    Default Re: Slow LAN transfer speed after upgrading network switch.

    Quote Originally Posted by Teajunkie View Post
    That’s bloody awful is there a firewall or something built into the switch!
    The TP-Link is an unmanaged switch so I would expect that to be a no, because there is no way to configure it. Have just found out that the Netgear is a smart managed switch, although I have never entered the settings to configure it, which is why I assumed it was unmanaged.

    Still doesn't explain why the TP-Link switch is so slow. If anything I would expect the Netgear switch to be the one to give problems if it wasn't configured properly. The TP-Link switch is plug and play. (">

  4. #4
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    Default Re: Slow LAN transfer speed after upgrading network switch.

    I can only assume the TP-Link switch is faulty, so just requested a return. Saves any further headwork. Ordering a Netgear 8 port smart managed switch like the one I already have. Will link together to give me 14 usable ports which is more than enough for my needs. At least then I can easily monitor LAN connection speeds, and upgrade network cards and cables where necessary. Also saving £30 by adding another 8 port rather than replacing with a 16 port. (">

    Thanks to BigBird

    Teajunkie (4th August 2019) 


  5. #5
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    Default Re: Slow LAN transfer speed after upgrading network switch.

    Could be something like jumbo frames, odd though!

    Thanks to evilsatan

    BigBird (5th August 2019) 


  6. #6
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    Default Re: Slow LAN transfer speed after upgrading network switch.

    Quote Originally Posted by evilsatan View Post
    Could be something like jumbo frames, odd though!
    Just checked the specs. Both switches have 10KB jumbo frame support by default and cant be changed manually. (">

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  7. #7
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    Default Re: Slow LAN transfer speed after upgrading network switch.

    I have really bad transfer speeds to my old NAS with pretty new HDDs in there so I might try that without the TP-Link switch I'm using to see if they improve...

    EDIT:
    Just tried myself using LAN Speed Test v2 and connected through the TP-Link TL-SG108E got 10-17Mbps write and 95Mbps read, connected both to my Draytek router and now have 530/710Mbps. No idea what's going on here but don't have the time to test at the moment! Will be looking at QoS first of all I think and for a FW update.
    Last edited by evilsatan; 5th August 2019 at 06:02 PM.


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