Check that Wi-Fi is on and connected to the intended network, restart the PC and router when appropriate, then use Microsoft's Windows Wi-Fi troubleshooting for the exact connection symptom.
Measure the symptom before optimizing: note the network name, signal bars, negotiated band, location, speed, latency, and whether other devices fail. This distinguishes weak coverage, congestion, router service, and one-PC faults.
2
Check the selected network
Open the network controls, verify Wi-Fi is on, and confirm the PC is joining the intended network.
3
Restart the connection equipment
Restart the PC and, if you manage it, the router or access point before changing advanced settings.
4
Use the matching Windows diagnostic
Follow Microsoft's Wi-Fi troubleshooting for the displayed symptom and record any exact error.
After reconnecting or restarting equipment you manage, test at the same location and time. Compare a wired connection or another trusted Wi-Fi network when available without exposing the PC to an unknown public network.
6
Do not confuse signal strength with internet capacity
Changing DNS does not improve radio signal, and maximum bars do not guarantee internet capacity. Avoid copying channel, power, roaming, or registry tweaks that are not documented for the router and adapter.
7
Improve coverage before changing advanced settings
Move closer to the access point, reduce physical obstructions, and use the router maker's supported channel or mesh guidance. Install Windows and manufacturer-approved network drivers only after the basic connection checks.
Video walkthrough
If it does not work
If only this PC remains slow, record adapter model, driver version, signal, and Get Help results for the PC maker. If every device slows, document wired and wireless tests for the ISP or router provider before buying replacement hardware.
ⓘ Sources and verification
Checked against official documentation on . Scope: Windows.
Follow the linked first-party guidance if labels differ after a platform or app update.
