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MCrippa's avatar
MCrippa
Tutor
Apr 29, 2020
Solved

Daisy chain gs108 and 1Gbps not working

Hi all,

thank you in advance for your help. I've have two GS108ProSafe switches and I connected them in "daisy chain". The connection between the two of them is working at 100Mbps connection (just the left led is on) while I was expected to see 1Gbps (two leds on)

 

Any idea why? is this an expected behaviour?

 

thanks

marco

 

Please note that

  • The PC/NAS/etc. connected to the second switch of the chain have two leds on ( the port is working at 1Gbps). Obviously I guess, the connection between the two switches is a bottleneck.
  • I run some test on the ethernet port in the wall and the cable I used. Apparently everything is ok and they are perfectly capable of wotking at 1Gbps (so this is not a connection problem due to the cables)
  • plemans's avatar
    plemans
    May 01, 2020

    Glad to hear its not the switches. Sorry to hear its something within the wiring as its tends to be a pain troubleshooting.

    If you mark it as solved, it might help the next person with issues. 

5 Replies

  • plemans's avatar
    plemans
    Guru
    Apr 29, 2020

    Simple check? 

    unhook the 1 device from where its at and directly connect it to the other switch with a short (known good) cable. 

    They're unmanaged switches so its an easy check. 

    Also, try different ports in case one's dirty/bad. 

    • MCrippa's avatar
      MCrippa
      Tutor
      Apr 29, 2020
      Thanks s lot fo your reply.
      Connecting a pc straight to a port of the first switch, I get a 1Gbps signal (both led on) no matter which port I use. Same behavior connecting a pc to a port of the second switch (which is brand new). If I connect the two switches together, I get 100Mbps. Just one led is on on the port I use on switch 1 and on the port I use on switch 2 ( no matter the port I use). The connection is done using a short known good cable from switch 1 to the wall (Rj45 plug) then 25meters of cat6 cable and then another short known good cable from the wall to switch 2. The total distance (sum of cables lenght) is around 30 meters. I personally don't see this ad an issue but I might he wrong. I didn't test yet what happens if I put the 2 switches close to each other and I connect then via a single short known good Cable. I let you know asap.
      • MCrippa's avatar
        MCrippa
        Tutor
        Apr 30, 2020
        Test done. If I connect the two switches directly with a known good cable, they work at 1Gbps (both leds are on the ports I use). I did a bit of additional trouble shooting: the problem is either the cable in the wall or the connections (rj45 in the wall). I will redo the connections and we'll see. The switches are perfectly fine and I guess we can close this discussion. Thanks a lot.