Why can't you connect to the Internet?
First check your TCP/IP address - see my earlier tip on checking you are connected to a network. For most recent systems, (not Linux) open a command prompt window (type "cmd" in the RUN window from the start menu) and type ipconfig /all
you should see your network adapter name and IP address, a subnet mask (don't worry) and a default gateway, also a DNS server IP address. If ANY of these are missing, that's your problem, try repairing or resetting the network adapter. WRITE THEM DOWN. You may have more than one adapter, you need to identify which one is used for the Internet connection.
If they are all there, from the SAME window type "ping" followed by the IP address of your default gateway. If this fails, you have no connection to your internet router, find out why!
If this succeeds, type "ping" again, followed by the IP address of your DNS server. If this fails, type "tracert" and then the IP address of your DNS server. The FIRST address that will be reported is your default gateway; followed by your ISP address; if the only address you see is your default gateway, the link to your ISP is down, give them a call. If it succeeds, from the same window type "nslookup"
You will see a chevron prompt, type in the name of the site you want to go to, e.g google.com.
You should then see a reply from your DNS server, and an IP address for your required server. If not, then either your DNS server settings are wrong OR the server does not exist. It will be obvious which it is from the reply you receive. If the DNS settings are wrong, you can change them from the Control Panel, Network, Network adapter, Properties, TCP/IP v4 properties menu; try setting DNS server to 18.104.22.168 or 22.214.171.124 and try again.
on Mar 26, 2010 | Computers & Internet