Hey everyone, I'm in a bit of a bind — my internet connection just dropped out of nowhere yesterday. The internet icon looks normal, but I can't connect at all. I've spent about five hours trying to troubleshoot this on my own, so I'm reaching out for help. Here's what I've done so far:
1. I followed all the command prompts: ipconfig release/renew, flushed DNS, and reset TCP/IP. I managed to run ipconfig renew once, but now it just says it can't contact the DHCP server and times out.
2. To tackle the DHCP issue, I tried all the command prompts and some registry adjustments. I gave full permissions to local network services, but I still get an access denied error when trying to restart DHCP.
3. Troubleshooting indicates "Ethernet does not have a valid IP configuration," and manual IP entry didn't work either. I tried various DNS numbers and toggled TCP/IPv6.
4. I uninstalled any VPNs I had.
5. I formatted and reinstalled Windows completely.
6. I uninstalled the network driver from Device Manager and rebooted but that didn't help.
7. I've rebooted the router at least 384 times.
8. I switched the cable to a different port on the router.
9. I've unplugged and re-plugged the cable into my PC multiple times (not 384, but a good 76).
Interestingly, my phone and TV are still connected to the Wi-Fi without any issues, but my PC is just unresponsive. I'm considering buying a new 12-meter cable, but I'm not sure if that's the actual problem. I talked to my provider, and they said they'll look into it, which I don't expect will lead to anything. The local repair shops aren't exactly reliable either, and I'm currently bedridden, so I'm hoping someone here can provide some insight. Apologies for my English!
3 Answers
I’ve seen stuff like this before. In some cases, even flashing the BIOS didn’t fix the issue. What worked for me was installing a secondary Network Interface Card (NIC). If your PC has an available PCI slot, this could be a quick fix. And just for clarity, NIC stands for Network Interface Card, which is basically the hardware that connects your computer to the network.
First things first, let's see if it’s a hardware issue. You could try running a Linux Live Session from a USB. This way, you can boot into a lightweight OS without installing anything. If your network works there, the problem could be in Windows. If not, it’s likely hardware related. Here's a good guide on how to create a bootable USB with Linux: [rTechSupport Linux Guide](https://rtech.support/live-sessions/linux-live-session/). Give it a shot and see what happens!
When you connect the cable, do you see blinking lights on both the PC and router ports? And when you set a static IP, were you able to ping your gateway (usually the router)? If you've got a wireless adapter lying around, you might want to try that for troubleshooting too—just in case the Ethernet port is malfunctioning.
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