Adjust settings to raise speed from 100 Mbps to 1 Gbps
Adjust settings to raise speed from 100 Mbps to 1 Gbps
My PC runs Windows 10 Home with an Asus z390 E gaming board, an i7 8700K processor, CAT 8 Ethernet cable, and a Verizon Fios Quantum router. Previously I had 75 Mbps, now upgraded to 1 Gbps. Speed tests indicate 900 Mbps to Verizon servers, but my device only handles 100 Mbps. Can I adjust the EtherNet driver or adapter settings? I attempted to install the latest LAN driver from Asus, but it reported incompatibility.
The motherboard already handles gigabit connections. If you're experiencing slower performance, it's probably due to a faulty cable.
When an ethernet cable connects to the Verizon box, the maximum data transfer will be limited by the MTU size. A 1500 MTU with a 1460 payload results in about 94.3% utilization, provided both your device and the router can handle it. This means you'll reach roughly 943Mbits, which is the upper limit. Another factor is the link between your router and Verizon—fiber connections typically offer lower latency. If your computer only sends data at 100mbit, it could mean a) the hardware isn’t gigE (such as a switch or hub), b) the cables are damaged, or c) the card settings aren’t optimized for 1Gbps. Most devices will try to negotiate the fastest speed unless they’re laptops, which often start with lower speeds to conserve power. For years, no laptop or desktop has shipped without gigabit Ethernet, so unless you're using an older system like Windows XP, it should be possible to connect at gigabit speeds.
I verified the speed and duplex settings—it was already set to auto. I’ll inspect the cable running under the ceiling in the basement. It could be that a staple is too snug.
The cable appears to be in good condition. I spoke with Verizon and they didn’t find any issues. It might be the router that’s causing the problem. I purchased it separately from Verizon.
I assessed the situation by checking the cable visually and using a cable tester for confirmation. The router in use was a [insert model name].
The Fios Quantum is a gigabit router featuring gigabit ports. I previously upgraded my home network using it. Make sure to verify the Ethernet connection from the ONT to the router and from the router to your PC. Also, look for updated drivers for your Ethernet adapter on your motherboard.
You'd need a digital tester or network analyzer for a proper check. The Fios Quantum router supports up to 800 Mbps. On the Asus site, look for compatible LAN and Wi-Fi drivers for your motherboard. If they don't work, contact Asus directly. The router uses a gigabit driver—consider adjusting settings in Properties to auto or 1Gb. Network connectivity remains weak, only achieving 100-250 Mbps on Wi-Fi.
Do you have an additional router positioned between the FiOS gateway and your PC? If yes, what brand or model is it? Would relocating your PC nearer to the FiOS gateway work? You could also connect it directly via Ethernet.
I have a Fios Quantum router. My roommate plans to connect his laptop via Ethernet. An Asus tech informed me my motherboard supports only 100 Mbps. I checked the gigabit driver section in the downloads and they’ll get back to me soon. I’m hoping I can upgrade it, but I’m still seeing compatibility issues.