When you go wireless make sure you are within the distance limits of the router and that the firewall is allowing the connection. When it comes to Ethernet cable make sure it is a good cable and seated correctly. One thing you can do is go to command prompt (Start -> Run -> "cmd") and type ipconfig /renew to renew the ip address. Then verify if the listed ip address is within the range of the router (what you have the ip address of for the router). This will give us a better idea what is going on..
click start, run, type cmd and then hit enter. when the dos screen comes up type ipconfig /all look for the ip address for the ethernet controller. you will get a limited or no connectivity if the ip address begins with 169
When two devices on your network wind up with the same IP address, this is detected and the network interface on both on them gets disabled, causing each system to lose its connectivity until the conflict has been resolved.
Refer to my post #5
Also make sure that DHCP is enabled on the router.
Can i ask a question: Is this your own network or a business/school network?
hi radesh, i think your server is using a static ip addressing, when you assign your IP ad make sure that someone is not using it, if your doing this in a business or school network better consult your IT administrator before you disrupt your whole network...