Member Avatar for henra

Hi there - have a 3 computer network connected to a router, 1 directly through a cable & 2 wirelessly. All computers can happily connect to the network, but one of the wireless connections is unable to connect to the internet in any form (no programmes can connect). I've checked firewall, internet options in ie, router exceptions, ip protocol & I'm sure there is some sort of really simple proxy setting that I've overlooked & it's driving me mad!

Hopefully you can help & thanks for looking!

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  • Latest Post Latest Post by mythik

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This situation usually means the wireless adapter can reach the router but traffic is blocked or not being resolved past it. described the classic symptom, and ’s DHCP/IP checks are a solid start (confirm the adapter has a LAN IP and gateway). If other machines on the same SSID get online while one does not, concentrate on client-side DNS/proxy/driver issues and on router-side access controls.

Isolate whether this is a name-resolution problem or a routing/NAT problem. Perform a DNS lookup and a path trace to an external numeric address; the results show where the break happens (resolver vs router vs ISP). Useful diagnostics:

nslookup example.com

tracert 8.8.8.8

If name lookups fail but the trace reaches the internet, the problem is DNS. If the trace stops at the router, the issue is routing/NAT or a router ACL.

Targeted fixes that are commonly effective: check the router’s DHCP lease table and any MAC-filtering or “client/AP isolation” settings; remove/forget the wireless profile on the affected PC and reconnect; update or reinstall the wireless driver; temporarily disable third‑party firewall/antivirus or boot Safe Mode with Networking to rule out software interference; verify there is no system-level proxy configured:

netsh winhttp show proxy

netsh int ip reset
netsh winsock reset

(The reset commands require a reboot.)

If a manual public DNS (for example 8.8.8.8) fixes browsing, DNS is confirmed as the culprit. If the problem persists even when the PC is wired to the same router, test the router (different WAN like phone tether, firmware update, or router config backup and restore) before doing a factory reset. These steps extend ’s DHCP-focused advice to cover DNS, proxy/WinHTTP, driver and router-side controls that most often produce “connected to router but no internet.”

Member Avatar for mythik

Are you using Static or Dynamic IP Addressing? (does the router have DHCP enabled)

If you are using DHCP, do try the following:

1. Goto Start Button
2. Run
3. Type in cmd (assuming you are using XP)
4. When the DOS prompt comes up type "ipconfig" w/out quotes.

Does your wireless NIC have an IP address and Gateway Listed?


Try to ping your router (most likely the gateway listed from ipconfig):

ping xxx.xxx.xxx.xxx
Example: ping

If you receive all four replies back then you are obviously connecting to your router, which is a good thing.

If the ping doesn’t work in the same window type "ipconfig /renew" without quotes.

Does it work? If it doesn’t work and you are certain your router is configured for DHCP, perform the following steps:

  • Goto Start
  • My Computer
  • In the left hand column under “Other Places” click on “My Network Places”
  • In the new window under the left hand column, “Network Tasks”, select “View Network Connections”
  • You should a network connection for your wireless NIC.
  • Right click on the connection and if it is Disabled select Enabled, and try the internet now.
  • If it was enabled Right click on the connection and select Properties.
  • When the Properties window loads use the scroll bar to find the option that mentions “Internet Protocol(TCP/IP)” and double click it.
  • There are four radio buttons listed, select the top ones under each set of options to “Obtain and IP Address Automatically” and to “Obtain DNS Server address automatically.”
  • Hit Okay and wait a minute or two for the NIC to obtain an IP address and try the internet again.
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