Ok, Now I have tried everything possible to get my computer back on the internett. I can access my network places without a problem, but when I try to connect to the internett it won't work!?! This happend from one day to the other, I just turned on my computer and it would no longer work.. All the other computers in the house are working fine exept my own.. Help me please!!

If you are accessing the internet on the network...try setting up the network in compliance with the computer connected, or the way you connect... With more details on HOW you connect to the internet, I can dig a little deeper in my comment. Dini

Please go a little deeper if you could.. The other machines are set up exactly the same as the one that won't work, as I said it happend over night.. Thanks for any help!

I think he means we will need to know how your network is set up. If broadband, do you use a router. Do you have 1 machine acting as router. What sort of network - cable - wireless Some general points:- Go back to a restore point before you had the problem. Try removing the network card from the device manager then rebooting and setting up the network again using the wizard. Swap the network card in your machine for one known good to rule out hardware probs.

First of all, system restore point is one good idea. Another would be to check TCP/IP settings on working computer. If using DHCP, then go to Start->Run and type cmd. In command prompt, type ipconfig /all and verify the IP address is anything other than 169.254.x.x and check default gateway and DNS Servers. Write them all down on paper and ping DNS first. If you receive 4 replies on good computer, then check on computer not working. Do the same thing, check TCP/IP settings in Local Area Connection Properties, then run command prompt. Type ipconfig /all again and verify they are the same except the IP address. If they are, try to ping DNS servers. If you get 'Request Timed Out', then manually add TCP/IP settings into LAN properties. Try opening Internet Explorer. You should be able to get in now. If you can't, look at router or NIC.

The settings on the computers are identical, my network works through a switch and a router. Have no idea what could be cousing this problem, I have tried to format my computer but still no success the same problem continues, NO internett! My networking works like a charm but when I trie to connect to the internett it will not work.. Have already tried to ping in cmd command and all 4 packages are recived without any problem... What could be wrong??

You probably have already checked but, could it be a faulty socket on the switch, swap with another computer to check.