My desktop PC can see my home Wi-Fi network, but it refuses to connect or provide internet access. Other devices connect to the same router normally, and the PC can connect successfully to my phone's hotspot, so the adapter is not completely nonfunctional. I've already restarted the PC and router, forgotten and re-added the network, checked adapter settings and drivers, adjusted Windows network settings, and run the built-in troubleshooter without success. I'm trying to determine whether the issue is caused by the Wi-Fi adapter, its driver, Windows configuration, or a router compatibility setting such as wireless security. What diagnostic steps should I try first?
4 Answers
Try the PC with a different network, such as a phone hotspot or another household Wi-Fi connection. Because it works with the hotspot, you can mostly rule out a dead adapter. You could also boot a Linux live USB and test the home network without changing your Windows installation; if Linux connects, the problem is likely Windows, its driver, or saved network configuration. If it also fails there, investigate router compatibility, antennas, or hardware.
First confirm whether this has ever worked on this particular router. If it stopped after a router, Windows, or driver update, that timing may point to the cause. Also record the PC’s Wi-Fi adapter model and the router model, then compare their supported standards and security options. Older adapters can detect a WPA3 network but still fail when they try to authenticate.
Before changing more settings, compare the working devices’ network details with the PC’s: security type, frequency band, IP address, gateway, and DNS. Check whether the router has MAC filtering, access-control rules, a device limit, or a separate guest network enabled. A USB Wi-Fi adapter borrowed for testing can also help confirm compatibility without committing to a purchase.
Since the PC connects to your phone’s hotspot, the Wi-Fi adapter and basic driver support are probably working. Focus on the router connection next: check whether the router is using WPA3-only security, a newer Wi-Fi mode, band steering, or a 5 GHz channel the adapter doesn’t support. Temporarily try WPA2/WPA3 mixed mode or WPA2, and test the 2.4 GHz network separately if the router provides both bands.
That makes sense. The hotspot test works, so I’ll compare the router’s security and band settings rather than replacing the adapter immediately.