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    • Unmanaged Switch MG105 - ping ok, internet ko

    Posts: 8
    First Comment
    in Switch

    Hi

    my switch mg-105 suddenly won't let me browse the internet. I can ping the router or other devices, but internet is down. If i connect the pc directly to router, internet works.

    Suggestion?

    Thanks

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    • Posts: 32  Freshman Member
      First Comment Friend Collector Third Anniversary

      Hi @Zotme,

      Could you help to verify the below question when the client connects to the MG105?

      1. Could you help to collect ipconfig /all (Window) information for me to check if the client gets the IP address/default gateway/DNS server settings?
      2. Can the client resolve the domain? Please use nslookup to check.
      3. What's your OS version / Nic model / Nic driver version?
    • Posts: 8
      First Comment

      Hi

      I've two switch MG-105, in the same configuration router-pc-cables, one works the other no…

      Windows 11 22H2

      Intel(R) Ethernet Controller I225-V
      Intel - 05/03/2022 - 1.1.3.28

      Same ipconfig /all with both switchs.

    • Posts: 3,085  Zyxel Employee
      Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
      edited June 2023

      Hi @Zotme,

      Thanks for providing your device information. But since you mention one MG-105 works and another does not, the problem is more likely on the MG-105. Could you provide the serial number of the two MG-105 for me to check the difference?

      Zyxel Melen


    • Posts: 8
      First Comment

      ko S224331001240

      ok S224329000256

      Thanks!

    • Posts: 3,085  Zyxel Employee
      Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

      Hi @Zotme,

      Thanks for the information. By the way, could you also help nslookup d.nebula.zyxel.com and tracert 8.8.8.8 between the two switches? I would like to confirm your internet has no problem.

      Zyxel Melen


    • Posts: 8
      First Comment

      Sure!

      MG-105 OK
      C:\Windows\System32>nslookup d.nebula.zyxel.com
      Server: TUF-AX6000-6F82
      Address: 192.168.50.1

      Risposta da un server non autorevole:
      Nome: d.nebula.zyxel.com
      Addresses: 34.246.20.161
      52.48.115.44
      52.210.12.1
      52.210.229.217
      54.73.103.137
      54.76.217.223
      54.154.22.135
      63.32.141.172
      34.243.116.158
      34.245.88.134

      C:\Windows\System32>

      C:\Windows\System32>tracert 8.8.8.8

      Traccia instradamento verso dns.google [8.8.8.8]
      su un massimo di 30 punti di passaggio:

      1 <1 ms <1 ms <1 ms TUF-AX6000-6F82 [192.168.50.1]
      2 9 ms 9 ms 9 ms 100.64.255.255
      3 9 ms 9 ms 9 ms net225-27-32-195.dimensionesrl.eu [195.32.27.225]
      4 9 ms 9 ms 9 ms net246-27-32-195.dimensionesrl.eu [195.32.27.246]
      5 8 ms 9 ms 9 ms 72.14.221.8
      6 9 ms 9 ms 9 ms 108.170.245.65
      7 9 ms 9 ms 9 ms 142.251.235.173
      8 9 ms 9 ms 9 ms dns.google [8.8.8.8]

      Traccia completata.

      MG-105 NO OK

      C:\Windows\System32>nslookup d.nebula.zyxel.com
      Server: TUF-AX6000-6F82
      Address: 192.168.50.1

      Risposta da un server non autorevole:
      Nome: d.nebula.zyxel.com
      Addresses: 34.246.20.161
      34.245.88.134
      34.243.116.158
      63.32.141.172
      54.154.22.135
      54.76.217.223
      54.73.103.137
      52.210.229.217
      52.210.12.1
      52.48.115.44

      C:\Windows\System32>tracert 8.8.8.8

      Traccia instradamento verso dns.google [8.8.8.8]
      su un massimo di 30 punti di passaggio:

      1 <1 ms <1 ms <1 ms TUF-AX6000-6F82 [192.168.50.1]
      2 9 ms 9 ms 9 ms 100.64.255.255
      3 8 ms 9 ms 9 ms 195.32.27.225
      4 9 ms 9 ms 9 ms 195.32.27.246
      5 13 ms 9 ms 9 ms 72.14.221.8
      6 9 ms 9 ms 9 ms 108.170.245.65
      7 9 ms 9 ms 9 ms 142.251.235.173
      8 9 ms 8 ms 8 ms dns.google [8.8.8.8]

      Traccia completata.

    • Posts: 3,693  Guru Member
      100 Answers 2500 Comments Friend Collector Seventh Anniversary
      edited June 2023

      unplug the switch that works and test the switch that does not to see if it works also unplug replug Ethernet to the switch to trigger DHCP

    • Posts: 8
      First Comment
      edited June 2023

      tried several times, don't work….

    • Posts: 3,693  Guru Member
      100 Answers 2500 Comments Friend Collector Seventh Anniversary
      edited June 2023

      You can ping 8.8.8.8 and DNS 192.168.50.1 through the switch and it being Unmanaged there is no traffic it can block.

      get tcping

      https://download.elifulkerson.com/files/tcping/0.39/x64/

      run in cmd

      tcping64 8.8.8.8 53

    • Posts: 8
      First Comment

      Probing 8.8.8.8:53/tcp - Port is open - time=9.933ms
      Probing 8.8.8.8:53/tcp - Port is open - time=9.893ms
      Probing 8.8.8.8:53/tcp - Port is open - time=10.077ms
      Probing 8.8.8.8:53/tcp - Port is open - time=9.602ms
      Ping statistics for 8.8.8.8:53
      4 probes sent.
      4 successful, 0 failed. (0.00% fail)
      Approximate trip times in milli-seconds:
      Minimum = 9.602ms, Maximum = 10.077ms, Average = 9.876ms

      No internet in Chrome, Brave, Steam client, etc…
      New test... Macbook Air with an hub usb with ethernet. Get an IP from DHCP. no internet.

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