![]() ![]() I am using the main ethernet socket on the mobo. I have 3 network ports on my system (1 on mobo and 2 on an expansion card). I have tried to find out what the cause is and can only conclude Windows10 update as impacted something along the way. I am the only system connected when trouble shooting so I know nothing else can be taking the bandwidth. This means that the negotiated connection speed between the Ethernet. Notice that the link Speed here reads as 100 Mbps. You should see a screen that looks something like this. Click the connection that represents the Ethernet connection to your router or modem. I've logged onto the router and cannot see anywhere for checking that 10/100/1000 can be selected/deselected so pretty sure the router is auto configured for all 3 speeds. Click View network status and tasks which will be below Network and Sharing Center. Two routers can not be wrong both of which are ISP provided with: My question is why does the auto negotiate or selecting the 1gbps full duplex result in the Ethernet socket thinking there is no cable connected (red cross). Not an issue apart from the fact I am paying for 200mbps and this has worked fine since the speed upgrade almost a year ago. I dont know which one has done this.ĭue to the restriction with 100mbps my internet speed is now halved. My internet is 200mbps and I was getting this fine until a recent windows 10 update. Great internet working and router was actually fine. Solution to get the LAN connection working was to select 100mbps Full Duplex. So no Ive reinstalled and still have the problem.ĭiscovered that the Speed and Duplex being on auto Negotiate results in the red cross on the Ethernet port issue. Got a new router from ISP as thought something may have gone belly up with it after testing second system via LAN, same thing red cross even though connect.Īll cables are good and were working pre which ever update caused the issue. The root cause was the issue with Ethernet Cable Unplugged after Windows 10 upgrade to the most recent version 1607 and all updates. Reinstalled Windows10Pro 圆4 this week and all fine.
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