Originally Posted by trevjeep
Hello trev, and welcome to Vista Forums!
The problem with Network/Internet device drivers is you need the device to be working in order to find and/or repair drivers. So you will need to have access to a computer with working Internet to download and reinstall a driver. Here is the OEM site with all the info you need to fill in your specs (Unknown doesn't help us help you). http://support.ts.fujitsu.com/Download/ShowFiles.asp
From this site start with "Mobile devices" to get to your model: V5535
First we need to know if you are using a cable to connect your laptop to the Internet or if you are using Wireless. Do you connect directly to your Internet Provider's Modem or do you have a Router in between?
Have you checked the cable and the plugs at each end? Have you rebooted the Modem and then your laptop to see if connection is restored? Have you called your Internet Service Provider to see if they are connected to the Modem in your house?
Once you have checked all the physical connections to your laptop and know that the Internet connection to your house is good, some other possibilities are that the Network Adapter in your laptop is bad, or even just the connectors inside have come disconnected. Switching from cable to wireless or vice versa can help diagnose broken parts. (It helps if you can borrow some known working parts, like a wireless modem to test, or a USB network adapter to see if you can connect to the Internet with these parts.)
Before I would even think about reinstalling the OS, I would make sure the adapters and connections are in working condition.
Please let us know what you find?