Ethernet stuck at 100mbps even with all comptaible components and cables help pls?

Title: Resolving Ethernet Connection Limitations: When Your Network Stuck at 100 Mbps

Introduction:
Experiencing slow or limited network speeds can be frustrating, especially when all your components seem to support higher bandwidths. If your Ethernet connection remains stuck at 100 Mbps despite having compatible hardware and cables, you’re not alone. This issue can stem from various factors, ranging from hardware faults to configuration settings. In this article, we’ll explore common causes and effective solutions to help you achieve optimal gigabit Ethernet performance.

Understanding the Issue:
Many users encounter a situation where their wired connection is limited to 100 Mbps, even though their motherboard, network plan, and equipment support 1 Gbps speeds. This discrepancy often leads to confusion and troubleshooting efforts aimed at enhancing network performance.

Possible Causes:
1. Faulty Ethernet Cables:
Perhaps the most common culprit. A damaged or substandard cable can limit connection speeds regardless of support from other hardware.

1. Incorrect Network Settings:
   Misconfigured network adapters or duplex settings can prevent connections from reaching gigabit speeds.

2. Driver or Firmware Issues:
   Outdated or incompatible network drivers can impede proper functioning of Ethernet adapters.

3. Hardware Compatibility or Faults:
   Sometimes, the network port on the motherboard or the network interface card (NIC) itself may be defective.

4. Router/Modem Configuration:
   While your modem/router supports gigabit speeds, improper settings might restrict throughput.

Troubleshooting Steps:
1. Verify Cable Quality:
– Use a high-quality, Cat 5e or higher Ethernet cable.
– Test with a different, known-good cable to rule out hardware faults.

1. Check Network Adapter Settings:
2. On Windows: Navigate to Device Manager > Network Adapters > [Your Adapter] > Properties.
3. Under the “Advanced” tab, set Speed & Duplex to “1.0 Gbps Full Duplex.”

4. Ensure that “Speed & Duplex” is set to “Auto Negotiation” if unsure.

5. Update Drivers:

6. Download the latest drivers from your motherboard or NIC manufacturer.

7. Keep firmware of your modem/router up to date.

8. Test Hardware:

9. Try connecting the Ethernet cable to another port if available.

10. Use a different computer to verify if the issue persists.

11. Examine Router/Modem Settings:

12. Access your device’s admin interface and verify the port settings.

13. Disable any speed-limiting options or QoS settings that might restrict bandwidth.

14. Confirm Internet Service Plan:

15. Contact your ISP