Is your router set up for DHCP (default setting)? Did you change any of the default Lan settings? Enable Mac Filtering? The wireless security doesn't appear to be the problem since your computer can connect to the router which means It was assigned an IP address and is connected to the network. Try to ping one of the other computers on the network, on the computer you are going to ping go to the start menu and go to the run command and type cmd and press enter. At the command prompt type Ipconfig and press enter. Write down the IP address and take it to the problem laptop. On the laptop go to the command prompt ( as described previously) and type PING and enter the IP address of the other computer. Lastly Please download MiniToolBox
To your desk top and run it.
Checkmark following checkboxes:
- Report IE Proxy Settings
- List content of Hosts
- List IP configuration
- List Users, Partitions and Memory size.
and post the result (Result.txt).
should appear when the program completes and it should exit. You can then copy and past the contents of the log into your response on the Networking forums. If the log does not automatically appear it should be on your desktop or in the folder the file was downloaded to.