There is a Service that if it was turned off , it can disable all that stuff.
In control pannel | administrative tools | Computer management , Click on Services and applications, and then click on services.
Or WinKey-R and type services.msc
or in search just type services.msc and hit enter.
in there check for the 4 "network . . ." services. (I dont know the one that would have your symptoms yet)
fix this without reinstalling Windows 7
Yes, have a full Image backup of your operating system, that is created say weekly, and Recovered if nessisary outside of the operating system. A backup program like Acronis for example, that runs off of a CD or USB stick, and does not run that system, or depend or rely on that system.
I know this does not fix todays problem, but it will fix more problems in less time than anything in the system does. I have had the same problem your showing in XP once, spent some time redoing everything, doing discovery.
I Uninstalled the networking portions of the OS, Then Re-installed the networking portions, using add and remove windows programs (now called On and Off) and never figured it out. With windows 7 you really cant even remove networking components to reinstall them.
In 3 minutes I fixed it by booting to a CD, recovering my full image backup of the OS I had saved. Less time than it took me to write this. :-)
If you secure your Functional OS with an Image of the partition, Then store your important data on a seperate data disk or partition, away from the system. Then set your e-mail to stay on the server for a bit longer than usual, the loss from retracting the system back a week is minimal.
Somebody had to say it. Might as well be me.
1Do the event logs show any failures/error messages? Can you ping localhost/127.0.0.1? Does the network troubleshooter report anything? – Ƭᴇcʜιᴇ007 – 2011-09-23T15:54:11.340
Can you manually assign an IP address that is available on the local network and make any connection/PING other hosts? – Dave M – 2011-09-23T15:59:22.833
ping 127.0.0.1 works, ping localhost also works but resolves to IPv6 address. WMI throws an error in the eventviewer that it fails with a query, but that is it. – Robin Andersson – 2011-09-23T16:01:23.690
ping to our gateway 192.168.10.1 result in: Unable to send ping signal. General failure. – Robin Andersson – 2011-09-23T16:04:55.653
What does ipconfig show? – Shinrai – 2011-09-23T16:15:05.843
It just say disconnected - Even though the GUI status says that it is connected with 100Mbit/s. – Robin Andersson – 2011-09-23T16:20:25.977
Which antivirus do you have running? – horatio – 2011-09-23T18:09:13.877
No antivirus or firewall is currently active, not even the Windows ones. – Robin Andersson – 2011-09-23T18:33:40.783
Reset the Winsock stack. Google should direct you to the KB article. – ta.speot.is – 2011-09-26T07:39:26.223
It might that your restore point doesn't go back far enough but the problem arose? – Coops – 2011-09-26T07:50:07.003