Limited to 100mbps transmission speed
Limited to 100mbps transmission speed
Your connection is limited to 100 Mbps over the LAN despite having a gigabit controller and a Cat8 cable. The driver reinstallation didn’t fix the issue. Let’s troubleshoot further.
Verify adapter configurations via Device Manager. Advanced options may show 100mbps.
Speeds are constrained by the weakest connection. It looks like you identified your PC as the bottleneck, so it's time to examine other parts of the system. Next, I'd check your network switch or router—the other side of the Ethernet cable. There might still be devices running at 100Mbps, which could be outdated or misconfigured, capping performance at 100Mbps. This is likely the simplest issue to resolve. The last piece would be the Ethernet cable itself. It's possible it's damaged or uses Cat 5 technology, preventing full-speed operation. Auto-detection would recognize this limitation and restrict data transfer to 100Mbps. Replacing the cable would be necessary for optimal performance.
When your internet speed is capped around 9 Mbps, the type of network card doesn't significantly impact performance as long as you upgrade your plan. ~Note: Also, review your router's settings—some offer a "green mode" that restricts ports to 100 Mbps unless you manually enable Gbit for efficiency. Spoiler alert: it matters!~
your lan cable is a category 8 (new) and you're using just the modem without a router, so it's a direct connection to your laptop. I believe the issue lies with your modem—it still caps at 100mbps even though you get up to 300mbps over wifi.
If your modem offers less than 100Mbit service, it’s likely it only includes a 100Mbit Ethernet connection. There’s no benefit in upgrading to a Gigabit modem that can’t exceed 100Mbit anyway. This isn’t the reason for your slow speed, especially if you’re using DSL—it’s more likely your phone line is affected by interference and heavy signal mixing, which raises latency.
Latency and bandwidth don't go hand in hand. Switching from 100 Mbit to Gbit doesn't reduce ping. Delay is influenced by how far you are from the server, whether through physical distance or network hops. The best way to boost performance is reducing the number of intermediary systems. Bandwidth relates to the capacity of the connection—how many bits can be transmitted at once. You can speed things up by widening the channel, but you can't meaningfully cut delay except by altering the path. Think of it like a highway with several lanes and a speed limit (light speed). You can raise the road's capacity by adding more lanes (more items arriving simultaneously), yet the time between sending each item stays the same.