Desktop PCs are more prone to Wi-Fi trouble than laptops, mostly because they sit in a fixed spot and often use smaller antennas — but most connection issues are fixable without new hardware.
Restart your router
A router that's been running for a long time can develop connection issues that a simple restart clears immediately, and it's worth ruling out before touching the PC itself.
Update your network adapter driver
Outdated network drivers are a common cause of dropped connections and slow speeds on desktop Wi-Fi adapters specifically.
Check your adapter's antenna placement
USB and PCIe Wi-Fi adapters often include external antennas that need to be positioned upright and away from metal cases or other electronics to get a good signal.
Try a wired connection to test
Plugging in an ethernet cable, even temporarily, tells you immediately whether the problem is your Wi-Fi adapter or something further up the network.
Consider your PC's location
Desktop PCs are often tucked under desks or behind other equipment, which can weaken Wi-Fi signal significantly compared to where a laptop typically sits.
If a wired connection is stable but Wi-Fi consistently isn't, the adapter itself is the most likely cause, and either a driver reinstall or a hardware upgrade is usually the fix.
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