GS1100-24 slow speed for devices with speed 2.5Gbps

msoltes
msoltes Posts: 2
First Comment
in Switch

Hello, I want to ask why the switch switches to 100Mbps and not to 1Gbps after connecting a device with a speed of 2.5Gbps?

All Replies

  • PeterUK
    PeterUK Posts: 3,461  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    edited March 2023

    Maybe you have bad cables?

    Update the NIC driver?

  • msoltes
    msoltes Posts: 2
    First Comment

    Cables and NIC driver are fine. When I switch the Qnap NAS directly to the router, it goes 1Gbps. Only 100Mbps via switch.

  • PeterUK
    PeterUK Posts: 3,461  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    edited March 2023

    One or the other is not doing link negotiation right either something like:

    switch see 2.5Gb and run at 100Mb

    device see it can't run at 2.5Gb so runs at 100Mb

    as the Zyxel switch is Unmanaged with no way to update it you should ask for support by Qnap and see if you can fix the link speed to 1Gb.

    or it might be the case Zyxel have to do another version that you have to get a replacement.

  • Zyxel_Melen
    Zyxel_Melen Posts: 2,595  Zyxel Employee
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
    edited March 2023

    Hi @msoltes,

    Welcome to the Zyxel Community!

    May I know what model is your Qnap NAS and its NIC? Also need the serial number of your GS1100.

    Zyxel Melen


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