hello guys,
i have the arduino uno and the wifi shield,how do i connect my arduino uno with the apache server for http request and response ?
This is likely a software configuration issue. I'm assuming you connected the shield to your router with a standard Ethernet cable. Every example requires you to put in the mac address of your board and have an IP address.
Maybe you can try the DhcpAddressPrinter example, if it doesn't work right off you can add some Serial.println statements to see where it failed.
The examples are pretty basic, you will have to work from them to build whatever application you need. Patience is a virtue, understand all of the examples and you should be OK.