Switching from a USB Wi-Fi adapter to a PCIe Wi-Fi card.
Switching from a USB Wi-Fi adapter to a PCIe Wi-Fi card.
Hi, I'm trying to connect via USB Wi-Fi adapter (Tp Link T9UH) with my router (Tp Link Archer C4000). The router is on the second floor, about 30 meters away. The connection was okay most of the time but sometimes it was very poor—like when I pinged Google from the command prompt, there were many lost packets and spikes in latency every few seconds for hours or even days. I'm unsure what's causing the issue. I was wondering if switching to a PCIe Wi-Fi adapter would improve stability for gaming and low latency. Would this be a better solution? Also, I can't use cable and can't move the router. Thanks!
Consider investing in a high-gain antenna after purchasing the PCI Wi-Fi adapter. You can also opt for an SMA cable extender if you prefer using the included one. For a DIY approach, a SMA cable extension like this one works well and brings the antenna closer to the router.
For gaming or heavy downloads, PCIe is the better choice. Many USB Wi-Fi ports come from similar manufacturers and often struggle with overheating or unstable connections. Watching HD video usually works fine on USB. In my experience, a powerline adapter should be considered before USB in most situations.
WiFi struggles with low latency and isn’t as stable as wired links. Keep this in mind when setting expectations. Didn’t you specify whether your PC connects via 2.4GHz or 5GHz? Let me know. As others have noted, a PCIe adapter usually works slightly better than USB and lasts longer. But switching adapters won’t eliminate the 30m range issue or signal loss over floors and walls. The simplest fixes are: relocate the router to a central spot, possibly higher up, and clear any obstructions or raise it on a shelf. If running Ethernet isn’t feasible, extend the cable between the router and modem so the router isn’t cramped. If you’re tied to an ISP gateway connected to the uplink cable, that option won’t work here. In the PC’s room, try moving it closer to the signal source or relocating the PC itself to a more central area. Remove any unnecessary USB devices and use a dedicated USB header. Use WiFi Analyzer (free) to check channel usage on both bands and see what adjustments might help. There’s limited optimization possible, but positioning the antenna in a better-received area can improve results.