Ensure that the Ethernet cable is connected.
Boot the system to a WinPE command console (eg from a Windows Vista RM Recovery DVD).
Type IPCONFIG in the command console window. If no IP addresses are listed then you do not have a functioning network driver.
Obtain the correct network Windows Vista driver files and copy them to a USB flash memory device. Typically this will be a set of .INF, .SYS and .DLL and .CAT files (DRVLOAD requires CAT file(s)). Tip: Do NOT modify the .INF file(s) or they will fail to install as they are checksummed.
Change to the drive letter of the flash memory drive by typing the drive letter and a semi-colon (eg type F: and click enter).
Type dir *.inf to list the INF files that you previously copied to the flash memory drive.
Test the first INF file by typing DRVLOAD xxxxx.INF (where xxxx.INF is the first INF file listed).
DRVLOAD should report that the driver has loaded successfully; if not go to step 5 and pick the next INF file.
If you receive an 'unable to load' error (eg Error 0x80070002), check you have included all .sys and .dll files in the same folder.
Type NETCFG -WINPE to install the WinPE network stack.
Type IPCONFIG. If the command lists the IP addresses for your network you have found the correct driver. If no IP addresses are listed, go to step 6 and try another driver.
(Optional) Type NETCFG -WINPE again (sometimes not required), now use the following command to connect to another computer using net use.
NET USE \\mydomain\sharedfolder\ /U:mydomain/myusername "mypassword"
zdroj: http://www.rm.com/Support/TechnicalArticle.asp?cref=TEC1287003&nav=0&referrer=rss