ethernet shield problem

Projects General Guidance
1

Dear sir,

I am new to this arduino so i need some clarification from you sir,i am using arduino board with Ethernet shield ..i compiled web server code with arduino mega 2560..then i have connected arduino and Ethernet shield together ..then i checked in browser .it was worked at first time .after reset button pressed it does not shows anything ,then i checked from command prompt..it shows destination host unreachable.so sometimes it is working .. then it shows destination host unreachable...after that i removed LAN cable from Ethernet shield .then i connected one laptop to another laptop..then i got reply from same ip address ....so problem might be in Ethernet shield..so please guide me to complete my project.............Thanks in advance......

2

It should work.
Do you use this example?

Do you use DHCP ?
If you change this: Ethernet.begin(mac, ip);
into this: Ethernet.begin(mac); // use DHCP
then you will use DHCP.

Perhaps you can try another ethernet cable.
How do you power it ? with the USB cable ? You might have to try a power supply for the Arduino Mega board.

3

so problem might be in Ethernet shield

What Ethernet shield are you using? There are several different types.