Tinkering with the IP network now prevents my PC from connecting via the LAN cable.
Tinkering with the IP network now prevents my PC from connecting via the LAN cable.
I aimed to launch a Terraria Server with my friends so they could join whenever they wanted, without needing me to initiate it. I used a tutorial that gave me the IP address for my network provider (Frontier). I navigated through the Firewall settings, then Port Forwarding, logged in, and carefully followed the instructions. Right after completing those steps, my LAN connection failed instantly. Luckily, my Wi-Fi works on my rig but it’s unreliable—disconnections happen suddenly and pings are unstable. Through troubleshooting, I discovered the LAN cable connects to a different computer from a friend, which has a stable connection. I tried reinstalling Windows 10 in the hope it would resolve the problem, but it didn’t help. I’m now unsure what to do next and would really appreciate any guidance. I also attempted opening Command Prompt as an administrator using the Netsh command to reset the IP settings, though it didn’t fix the issue after a restart.
I revised the wording to make it clearer and more concise while keeping the original intent.
I completed the details using "Ipconfig" in Command Prompt, after typing most of the info and saving it, but the connection failed afterward.
Remove all content completely. This action affects your router's firewall; it's unclear how it stopped your LAN, but simply delete the entry you removed.
I removed it once my connection failed, so I’m uncertain about the current issue. Can the internet service company assist with this problem?
No, your internet service provider won't be involved—it's your issue. The problem seems to be on your end, possibly related to your computer or router settings. Have you restarted both your PC and router? Also, check if any configurations were altered recently.
You haven’t touched any settings related to “static IP.” Ensure you’ve cleared all rules in that port forwarding area on your router. Power off and reconnect your router. Open Command Prompt on your computer and execute: ipconfig /release then wait for it to complete, followed by ipconfig /renew. If issues persist, check if you accidentally turned off the Ethernet connection on your PC.
I haven’t had a chance to restart my router yet, but if I can, I would. For settings, I checked the Windows troubleshooter, which suggested the IP wasn’t properly configured. Looking through some videos helped me realize using CMD to run the ipconfig commands might help.