Network Adapter Working But Does Not Appear In Device Manager?Oct 9, 2005
Since upgrading to Windows XP Service Pack 2, my network adapter (a 3Com 3C905-TX-M)does not appear in Device Manager and I therefore can't get this computer to appear on my home network. The network adapter is still working because that's how I connect to the Internet, via LAN to a router then cable broadband,and IPCONFIG gives valid results including the correct IP address from the router via DHCP.I installed a clean copy of XP Home on a spare hard disk. The network adapter appeared in Device Manager and the computer appeared on the network. I then upgraded to SP2 and the network adapter disappeared from Device Manager and the computer no longer appears on the network.