Speed increases from 1 gigabit to 10 megabits per second
Speed increases from 1 gigabit to 10 megabits per second
I experienced stable performance previously with a 1Gbit connection for several years. Recently, my internet speed dropped significantly, ranging from 0.5mbit to 10mbit with high latency between 100 and 800ms. After testing on different servers and checking wired vs. wireless connections, I found no obvious cause. My laptop performed normally over Wi-Fi, but the desktop slowed down. I replaced the Ethernet cable and switched off/on my PC and access point without resolving the issue. The settings in my Access Point appear correct. I reset the adapter and restarted the system, yet nothing changed. No one seems to know how to fix this since the problem persisted after every adjustment. It happened consistently since yesterday.
Test a bootable Linux USB drive. If performance improves, it points to a software problem. If issues persist, it suggests a hardware fault. Windows occasionally adjusts settings by itself.
Restarting in Windows Safe Mode with Networking might resolve the issue. If it works, a third-party program could be interfering. You can perform an antivirus scan during this mode as well. Access the Control Panel → Network & Sharing Center → Change adapter settings → Ethernet properties → Configure button → Advanced tab → Adjust speed and duplex to 100 Mbps Full Duplex.
The likely culprit is the cable. 10/100 Ethernet works fine with just two pairs of wires, while Gigabit requires all four. If the cable isn’t solid, the PC might revert to a slower 10 megabit rate using half-duplex. You should try connecting your laptop directly to the PC’s Ethernet port. Don’t worry about speed settings or duplex mode—this isn’t the era of dial-up. Keep everything set to auto for reliability.