new laptop running windows 7 home premium. brought to work, plugged into work network cable, networked with all other computers ie servers, xp, printer, worked all day. came back the next day plugged in network cable, called it "unidentified network" could not connect to the internet or any other computers. system settings are workgroup- i have changed the name and rechanged the name. switched off ipv6 network sharing is on I have tried every possible suggestion but cannot get it to work. When i connect through wireless to work, i am also limited to only being able to see only vista and no xp machines, printers or servers. does anyone know what is going on?

Do you have both wired and wireless conencting to the network? Posting the result of ipconfi g/all here may help.Bob Lin, MS-MVP Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net How to Setup Windows, Network, VPN & Remote Access on http://www.howtonetworking.com

Hi, You may kindly refer to the following steps: 1. Update your network adapter’s driver to latest version. 2. Change your network adapter’s MAC address to have a try. 3. Check whether the wired cable is too long. 4. Uninstall the adapter, then try to reinstall it. Also, as chicagotech says, please post the result of ipconfig /all.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.