No clue what happened there, but everything is working now so I am happy.Īfter a bit of googling it indeed seems to be the interoperability of my NIC and the switch, found this: It seemed that nothing in the Ethernet connection or NIC settings did not help, so I removed the whole ethernet adapter and it's drivers from the device manager of PC1.Īfter re-installing the adapter device, everything started to work smoothly. The motherboard of the PC1 is ASUS ROG Strix Z490-E Gaming, if that is relevant.Īny ideas how to fix or troubleshoot further would be much appreciated.ĭid some troubleshooting last night and I managed to find a solution, but unfortunately the root-cause will remain as mystery. I am using Windows10 Home and it is patched to the latest available version. I tried to disable also the IPv6 on the PC1, but this did not seem to make any difference. Even PING does not go through.Īgain, if I connect the PC1 in the E4200 directly, everything works smoothly. The connection does not work in the Internet nor does it to the internal IP address of the E4200 which acts as the DHCP server. Also, the subnet mask and DNS servers seem to be set correctly for IPv6 and IPv4. Having this connection, my PC (let's call it PC1) cannot connect to Internet anymore, where PC2 still can.īoth get IP addresses and the IP address differs.ĭiagnosing the PC1 further, it seems to get both IPv4 and IPv6 adress from DHCP. Now I connect these two PCs in the CBS110-8T-D (let's call it switch from now on). I have two PCs which have network adapters embedded in the motherboard and both PCs are confirmed to be working fine, when connected directly to E4200. The router gets both IPV4 and IPV6 addresses from the ISP if that is relevant. The router works normally and the devices connected to the router get their IP address normally. Router is set to act as DHCP server for the LAN -ports. I have internet connection which comes to Cisco E4200 Wifi router. I just received CBS110-8T-D switch and I love everything else, but the fact that one of my computers does not connect to Internet when it is connected to the switch.
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