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LUKX's avatar
LUKX
Aspirant
Sep 30, 2021
Solved

GS305E loosing 1000M Link Speed

I'm having problem with my GS305E switch. I often 1GB often drops down to 100 and I have to restart Switch to get 1000M back.

I'm when using WIFI it's alwasy 1GB so I don't think it's router fault. Only on LAN I have speed drop.

No idea why it happens. Can anyone help. FYI I don't have too advance network knowledge :)

For router I'm using Synology RT2600AC.

Not sure why I can't choose 1000M Speed instead of Auto also.

 

 

 


  • LUKX wrote:

    I'm having problem with my GS305E switch. I often 1GB often drops down to 100 and I have to restart Switch to get 1000M back.


    Typical cause is bad network cable wiring, bad cable, bad connectors.

     


    LUKX wrote:

    I'm when using WIFI it's alwasy 1GB so I don't think it's router fault. Only on LAN I have speed drop.

    No idea why it happens. Can anyone help. FYI I don't have too advance network knowledge :)

    For router I'm using Synology RT2600AC.


    The link in question is between a router LAN port and the GS305E?

     


    LUKX wrote:

    Not sure why I can't choose 1000M Speed instead of Auto also.


    For Gigabit and faster Ethernet copper connections, IEEE mandates Auto negotiation usage only.

     

     

3 Replies

  • plemans's avatar
    plemans
    Guru - Experienced User

    have you tried swapping the ethernet cable? A sketchy cat 5e can cause issues

    • LUKX's avatar
      LUKX
      Aspirant
      All my cables are CAT 6 and CAT6A. I noticed one thing the cable in switch was a bit pulled out(clicked but pulled a bit out) i pushed it in and right away 1GB again worked.
  • schumaku's avatar
    schumaku
    Guru - Experienced User

    LUKX wrote:

    I'm having problem with my GS305E switch. I often 1GB often drops down to 100 and I have to restart Switch to get 1000M back.


    Typical cause is bad network cable wiring, bad cable, bad connectors.

     


    LUKX wrote:

    I'm when using WIFI it's alwasy 1GB so I don't think it's router fault. Only on LAN I have speed drop.

    No idea why it happens. Can anyone help. FYI I don't have too advance network knowledge :)

    For router I'm using Synology RT2600AC.


    The link in question is between a router LAN port and the GS305E?

     


    LUKX wrote:

    Not sure why I can't choose 1000M Speed instead of Auto also.


    For Gigabit and faster Ethernet copper connections, IEEE mandates Auto negotiation usage only.

     

     

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