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Error "The network connection settings have become corrupted" when configuring Windows Firewall
- Copyright © 2008 Ramesh Srinivasan
- Error messages
Symptom
When you open the Windows Firewall applet (firewall.cpl) and click the Advanced tab, the following error message may appear:
The network connection settings have become corrupted. To fix this, click Restore Defaults. This will delete all of your settings for Windows Firewall, and it might cause some programs to stop working.

Resolution
- Click Start, Run. Type services.msc and press {ENTER}
- Double-click Windows Management Instrumentation
- Set the Startup type to Automatic
- Click Start to start the service.
Then run these commands from Start, Run dialog:
Last modified on Feb 03, 2008.winmgmt /regserver
regsvr32 "%Windir%\system32\netshell.dll"
regsvr32 "%Windir%\System32\hnetcfg.dll"
regsvr32 "%Windir%\system32\wbem\wbemprox.dll"
regsvr32 "%Windir%\system32\wbem\wbemsvc.dll"
regsvr32 "%Windir%\system32\wbem\wbemcore.dll"
regsvr32 "%Windir%\system32\wbem\fastprox.dll"
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2 Responses to "Error "The network connection settings have become corrupted" when configuring Windows Firewall" 
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said this on 06 Feb 2008 9:55:40 PM PST
Tried this 3 times. It doesn't work
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said this on 24 Sep 2008 9:52:20 PM PST
this solution will only work if it becomes corrupt due to that service having the wrong start type. if the firewall becomes corrupt for unknown reasons (like on a fresh install), check your installation media, harddrive, RAM and powersupply.
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