I had my desktop windows 7 computer turned off for several days. After powering back up, it wants to apply "critical" windows updates, so I allowed update and the reboot. Network connections did not work after this, but I didn't check if it was working before the reboot.
Now neither the wireless nor wired connection show up in ipconfig, but they show up (with no error or warning overlay icons) in Device Manager and Network Connections. Ipconfig only shows "Tunnel adapter Teredo Tunneling Pseudo-Interface". Trying to ping anything returns "PING: transmit failed. General failure". Running "ipconfig /release" returns "the operation failed as no adapter is in the state permissible for this operation"
Other laptops, the ipad and phone work with wireless. Plugging the same Ethernet cable into a laptop also works.
I used System Restore to go back 1 and 2 restore points. Neither fixed it.
Booted to safe mode, still nothing in ipconfig.
I also tried the winsock repair suggested here, but this did not help: http://social.technet.microsoft.com/Forums/en-US/winservergen/thread/415e1001-dfe5-47b4-a7b3-4c4642a81c16/
Under Network Connections, the LAN is in Media State "Enabled", but IPv4 and IPv6 Connectivity are "Not Connected". TCP/IP (both v4 and v6) are installed for the LAN connection, and both set to obtain address and DNS server address dynamically.
Anything else I can try to diagnose or fix the problem?