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JohnJohnsonn's avatar
JohnJohnsonn
Aspirant
Dec 20, 2020

No network access through switch

I have two PCs connected to a switch.

One PC has no netowrk access.

But when I connect it to a wifi router, it has access and everything works fine.

Only when it is connected to the internet though the switch or directly to the cable modem, it has no access.

 

I tried everything: reinstalling driver, running all the ipconfig commands. but nothing helps.

The other pc works just fine throug the switch.

 

Both are Windows 10.

 

Any idea?

10 Replies

    • JohnJohnsonn's avatar
      JohnJohnsonn
      Aspirant

      Yes.

      It also doens't have connection if I connect it directly to the cable modem.

      Only has connection if connected to the wifi router.

      • No1Mportnt's avatar
        No1Mportnt
        Luminary

        Does the router have a built in switch?  If so connect your modem to the internet port on the router then connect your switch to the #1port on the router switch.  

  • schumaku's avatar
    schumaku
    Guru - Experienced User

    JohnJohnsonn wrote:

    Only when it is connected to the internet though the switch or directly to the cable modem, it has no access.


    The switch is connected to a LAN port of the existing WiFi router?

     

    In case this Cable modem is really just a cable modem without a built-in and active NAT router), and the switch is linked between the cable modem and the WiFi router WAN/Internet port, the second PC might not get a workable (public/routeable) IP address. 

    • JohnJohnsonn's avatar
      JohnJohnsonn
      Aspirant

      Switch connected to cable modem.

      Wifi router is connected to switch.

      PC 1 is connected to switch has internet.

      PC 2 is connection to switch - no internet

      PC 2 is connected to wifi router - has internet

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