Quick troubleshooting view
The station is well associated with the Wi‐Fi network, but no Internet navigation works.
- Incorrect IP address or gateway
- DHCP server unavailable
- Inaccessible or misconfigured DNS
- Check the IP address.
- Test the gateway.
- Test Internet IP.
- Renew the DHCP address if necessary
- Correct the position or DHCP DNS
- Restart only the network equipment concerned after diagnosis
Contextual technician plan
Run ipconfig /all and control the IPv4 address, gateway and DNS.
ipconfig /all.A valid non-APIPA address, expected gateway and DNS servers should be present.
The local IP configuration is coherent; test the next network layer.
Investigate DHCP, VLAN, adapter configuration, gateway or DNS assignment.
ping 192.168.1.1.The target should reply consistently with no systematic packet loss.
Basic IP reachability exists; continue with DNS, port or application checks.
Check local addressing, gateway, routes, VLAN/firewall and target availability.
Test ping 1.1.1.1 to distinguish IP connectivity from DNS problem.
ping 1.1.1.1.The target should reply consistently with no systematic packet loss.
Basic IP reachability exists; continue with DNS, port or application checks.
Check local addressing, gateway, routes, VLAN/firewall and target availability.
Run nslookup boiteaoutilsinformatique.fr.
nslookup informatique.frA valid DNS answer should be returned by the expected resolver without timeout.
DNS works for this test; compare the exact failing name, suffix, cache and application context.
Check configured resolvers, reachability to DNS, the zone/record and UDP/TCP 53 filtering.
Check if the problem is only with this station or the entire network.
“Compare with another device.” should produce an observation that clearly confirms or rules out “Router or operator access problem”.
If the observation is normal, lower “Router or operator access problem” in the ranking and continue with the next distinct check.
If the observation is abnormal, keep the evidence and investigate “Router or operator access problem” first.
Repeat the same validation test after the correction and confirm the original symptom is gone. Validate stability before closing the incident.
Before changing configuration, record the current value and a way back.
Climb if multiple devices lose simultaneously Internet or the gateway responds but no WAN traffic exits.
The station is well associated with the Wi‐Fi network, but no Internet navigation works.
Causes probables
- Incorrect IP address or gateway
- DHCP server unavailable
- Inaccessible or misconfigured DNS
- Unvalidated captive portal.
- Router or operator access problem
Diagnostic étape par étape
- 1
Check the IP address.
Run ipconfig /all and control the IPv4 address, gateway and DNS.
- 2
Test the gateway.
Ping I, address of the local gateway.
- 3
Test Internet IP.
Test ping 1.1.1.1 to distinguish IP connectivity from DNS problem.
- 4
Test DNS.
Run nslookup boiteaoutilsinformatique.fr.
- 5
Compare with another device.
Check if the problem is only with this station or the entire network.
Commands utiles
ipconfig /all.ping 192.168.1.1.ping 1.1.1.1.nslookup informatique.frSolutions possibles
- Renew the DHCP address if necessary
- Correct the position or DHCP DNS
- Restart only the network equipment concerned after diagnosis
- Check operator incidents if all equipment is affected
Climb if multiple devices lose simultaneously Internet or the gateway responds but no WAN traffic exits.