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- Notebook Wireless and Networking
- Problem with the dns cache

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05-13-2025 09:34 AM
My WiFi connection says no internet, secured. When I look up under diagnose network problems it says there is a problem with the DNS cache. Every other device connects just fine to the router. It happened all of a sudden and I have tried just about every fix I can find to no avail. Please help. Thank you.
05-14-2025 12:26 PM
@Kohnnyb, Welcome to HP Support Community,
Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue
Flush the DNS Cache
This clears corrupted DNS entries.
Press Win + X > Click Command Prompt (Admin) or Windows PowerShell (Admin)
Run these commands one at a time:
- ipconfig /flushdns
- ipconfig /release
- ipconfig /renew
- netsh int ip reset
- netsh winsock reset
Restart your laptop.
Forget and Reconnect to Wi-Fi
Go to Settings > Network & Internet > Wi-Fi > Manage Known Networks
Click on your network > Forget
Reconnect by entering the password again
Manually Set a Public DNS
Your DNS server might be down or misconfigured.
Go to:
Control Panel > Network and Sharing Center > Change adapter settings
Right-click your Wi-Fi adapter > Properties
Select Internet Protocol Version 4 (TCP/IPv4) > Click Properties
Choose:
Use the following DNS server addresses:
Preferred: 8.8.8.8
Alternate: 8.8.4.4
(These are Google's public DNS servers)
Click OK, then restart the connection
Disable Power Saving on Wi-Fi Adapter
Windows may be powering off your adapter to save battery.
Press Win + X > Device Manager
Expand Network Adapters
Right-click your Wi-Fi adapter > Properties > Power Management
Uncheck “Allow the computer to turn off this device to save power.
Reset Network Settings
This will reinstall all your network drivers.
Go to: Settings > Network & Internet > Status > Network Reset
Click Reset now
Reboot when prompted
I hope this helps.
Please feel free to reply here if you have any questions or if you need further clarification on any of the steps.
Take care and have a good day.
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Regards,
Garp_Senchau
I am an HP Employee