When your WiFi feels slow or keeps dropping, the Windows signal bars in the tray don't tell the whole story. To truly troubleshoot a wireless connection, you need to see the technical details: what channel are you on? What is your actual receive rate? Is there interference?
You can get all of this technical data using the powerful netsh tool in Command Prompt.
Viewing Your Active Connection
To see a detailed snapshot of the WiFi network you are currently connected to, run:
netsh wlan show interfaces
Key details to look for:
- SSID: The name of the network.
- Radio type: (e.g., 802.11ax) This tells you if you're using WiFi 6, WiFi 5, etc.
- Channel: Important for avoiding interference with neighbors.
- Receive/Transmit rate: The actual speed (in Mbps) your card is communicating with the router.
- Signal: A percentage (e.g., 90%). Anything below 60% often results in lag or drops.
Checking for Interference
If your connection is slow despite a strong signal, you might be on a crowded channel. You can see every WiFi network your computer can "see" and what channels they are using:
netsh wlan show networks mode=bssid
Scroll through the list. If you see ten neighbors all on Channel 6, you should log into your router and move your network to a clearer channel.
Generating a Wireless Health Report
If you want a professional-grade diagnostic of every WiFi event that has happened on your PC in the last three days (including every time it disconnected and why), Windows can generate a hidden HTML report for you:
- Open Command Prompt as Administrator.
- Run:
netsh wlan show wlanreport - Windows will give you a file path (usually in
C:\ProgramData\Microsoft\Windows\WlanReport\). - Copy that path into your browser to see a beautiful, interactive graph of your WiFi history.
Quick Connection Toggle
If your WiFi is stuck and you want to "cycle" it without restarts, you can disable and enable it via command line:
To disconnect:
netsh wlan disconnect
To reconnect to a specific profile:
netsh wlan connect name="YourNetworkName"
Bottom Line
Forget the signal bars. For real diagnostics, use:
netsh wlan show interfaces
It gives you the raw data you need to optimize your wireless setup and fix connection drops for good.