Wi-Fi connected but no internet: what should IT check?
A connected Wi-Fi icon confirms association with an access point, not a working path to DNS, the gateway or the internet. Use a comparison-led checklist before resetting everything.
First determine whether the failure is local or shared.
Check another device on the same wireless network and the affected device on another approved connection. Those two comparisons quickly separate endpoint and site problems.
Scope
Confirm whether one device, one SSID, one access point or the whole site is affected.
Test
Check address assignment, gateway reachability, DNS resolution and an external destination in that order.
Compare
Use a healthy peer and another connection before changing drivers, network stacks or infrastructure.
What the IT team should check.
Capture the affected user, device, site, application and exact time before changing configuration. The comparison is often more useful than a single reading.
Address and gateway
Confirm the device has the expected IP configuration and can reach its local gateway.
DNS resolution
A working route with failed name resolution often looks like no internet to the user.
Captive portal or policy
Guest portals, proxy settings, filtering and access policies can block traffic after Wi-Fi connects.
Adapter and driver
Check adapter state, approved drivers, power management and recent configuration changes.
Another device
A nearby healthy peer reveals whether the failure belongs to the endpoint or shared network.
Lease and outage timing
Record when the failure began and whether DHCP, access-point or upstream events coincide.
Turn a complaint into evidence.
Tonzio keeps Windows endpoint, application, network and support context together so an IT team can compare an affected device with healthy peers and retain the timeline for intermittent cases. It supports the investigation; it does not replace vendor diagnostics or responsible change control.
- Record the exact symptom and time
- Compare the endpoint and network independently
- Use a healthy peer or site as a control
- Attach the evidence to the operational follow-up
Common questions.
Why does Windows say connected when nothing loads?
The device can be associated with Wi-Fi while DNS, routing, authentication or upstream internet access is unavailable.
Should IT use Network Reset immediately?
No. Capture the current configuration and compare another device first. A reset can erase useful evidence and require reconfiguration.
What if every device on the SSID is affected?
Investigate the access point, VLAN, DHCP, DNS, gateway and upstream connection rather than repairing each endpoint.