Symptoms
Wi-Fi connects successfully but shows “No internet, secured”
Occurs on all Wi-Fi networks
USB tethering from phone also shows “No internet access”
Issue persists across all user accounts
Safe Mode with Networking does not resolve the issue
Network Details
Wi-Fi adapter: Intel (no warning icons in Device Manager)
IPv4 address: 192.168.1.2
DHCP server: 192.168.1.1
DNS servers: 8.8.8.8, 8.8.4.4
Connection is assigned a valid local IP (not 169.254.x.x)
Cannot ping:
Router (192.168.1.1)
External IP (8.8.8.8)
Domain names (google.com)
What I’ve Already Tried
Reset TCP/IP stack, flushed DNS cache, renewed DHCP lease
Changed DNS servers (Google / Cloudflare)
Uninstalled and reinstalled Intel network drivers
Updated network drivers
Tested in Safe Mode with Networking
Tested across multiple user profiles
Attempted System Restore (no restore points available)
Additional Info
Issue started suddenly ~3 days ago
No recent antivirus, firewall, VPN, or network software changes
No hardware changes
Other devices on the same networks work normally
At this point, this appears to be a Windows networking stack corruption or system-level issue rather than a router or driver problem. What further diagnostics or recovery steps can be taken without doing a full OS reinstall?
