Ethernet continues to connect and disconnect repeatedly.
Ethernet continues to connect and disconnect repeatedly.
I'm experiencing internet problems with my desktop. The Ethernet connection keeps disconnecting and reconnecting. Wifi is functioning properly. We have three PCs connected to the router. PC A is the one with the problem described. PC B has a strange case; when I connect its Ethernet to the router, it also faces the same issue until I detach the cable from A. PC C works without any issues. The Wifi also works fine. I've tried various solutions and tips—changed DNS settings, restarted the router, checked cables, reset IP addresses, reinstalled drivers, uninstalled all VPNs, and turned off firewalls. Watched numerous tutorials, but nothing helped. If anyone has faced a similar issue and knows how to fix it, please let me know—it could save my situation now.
Additionally, we recently purchased PC A and B, both with Intel i5 4th Gen processors, Lenevo motherboards, but haven't had this problem for the entire month so far...
Well, I think it's probably a router problem. If another computer linked to the same router but not connected to it in any way, is facing the same issue, it should be a hardware fault with the router, unless there are several faulty cables.
You're asking about what it means when a connection is going into a disconnected state, especially when it appears on an ipconfig /all report. This usually points to a physical problem rather than a loss of internet access. It's hard to imagine a broken cable or Ethernet connection affecting just one other computer. The best solution would likely be replacing the cables with new ones. You should use cat5e cables, ensuring they're genuine and made of pure copper wire with a size of 22-24. Be cautious of cheap alternatives that have smaller wires. There are also software-related causes, such as duplicate IP addresses. Make sure each computer has a unique IP when running ipconfig /all on both devices. A rare scenario is identical MAC addresses appearing, which can happen during upgrades if manufacturers reuse the same address. MAC addresses aren't truly unique, and it's possible to override them in Windows.
Bill, thank you for your assistance. On network threads, I'm just attempting to grasp the fundamentals. However, it seems the issue might be related to cables, and I appreciate you providing further details since I've noticed several cases where the new cables were the cause.
Are you confirming that only one network adapter is active at any moment? Check "ipconfig /all" in the Command Prompt on both PC A and PC B. Share the complete output from each machine.