My ISP just upgraded my 100Mbps connection to 500Mbps. They also upgraded my router from TP-Link Archer C20 (supports only 100Mbps) to TP-Link Archer C1200 (supports up to 1Gbps). My desktop is on wired connection via a 30m CAT5e cable. However, when I do speed test, I'm only getting 100mbps connection. Windows' network connection status is also showing only 100mbps. Noted that, my desktop is using Asrock H370M Pro 4 motherboard which should support Gigabit LAN. At first I thought the ISP haven't upgraded my speed but when I run the speed test on my phone (which connected to 5GHz wifi), I'm getting more than 300 Mbps.
Any idea why this happened? Is my CAT5e cable faulty?
Any idea why this happened? Is my CAT5e cable faulty?