4
2
I can not explain what has happened, just suddenly I lost my internet connection. On local area connection properties IPv4 is not installed, my ISP says that they only support IPv4. Then I must had it because I had connection before. What could happen to lose IPv4? And how to install it back?
Thank you.
eomeroff
Posted 2013-03-08T21:33:07.063
Reputation: 747
5
way 1:
Run cmd as Administrator. Run command:
netsh interface IPV4 uninstall
Wait 2-3 minutes, run:
netsh interface IPV4 install
way 2:
Run cmd as Administrator. Run command:
resets WINSOCK entries to installation defaults
netsh winsock reset catalog
resets IPv4 TCP/IP stack to installation defaults:
netsh int ipv4 reset reset.log
or
netsh int ip reset reset.log
need reboot
way 3:
Run ncpa.cpl as Administrator.
Right-click the network connection which you are using, and then click Properties.
Click on Internet Protocol TCP/IPv4.
Click Install then.
Click Protocol, and then click Add.
Click Have Disk.
Type the location as %windir\inf%, example: C:\windows\inf and then click OK.
On the list of available protocols, click Internet Protocol (TCP/IPv4), and then click OK.
way 4:
wmic nicconfig get MACAddress, IPAddress, ServiceName, Caption, IPEnabled, SettingID | find /I "Realtek"
Get NIC GUID and del HKEY_LOCAL_MACHINE\SYSTEM\ControlSet00x\Services\{GUID} in registry.
wmic nic get Caption, PNPDeviceID, ServiceName, NetConnectionStatus | find /I "Realtek"
Get NIC PCI ID: PCI\VEN_XXXX&DEV_YYYY&SUBSYS_ZZZZZZZ&REV_TT and del HKEY_LOCAL_MACHINE\SYSTEM\ControlSet00x\Enum\PCI\VEN_{PCI_ID} in registry.
If it is difficult steps to improve law, registry entries, and then override the owner can use the Windows Driver Kit (WDK) 7.1.0.
Run regedit with SYSTEM rights.Need Windows Driver Kit (WDK) 7.1.0:
ntsd -c qd regedit
Scott Chamberlain (c), good comment!:
You can run regedit with SYSTEM rights by using PSExec too, much smaller download. One of the examples they post is running regedit as SYSTEM.
psexec -i -d -s c:\windows\regedit.exe
Reboot!
way 5 (apply if in a pinch, if the previous methods did not help):
/1. Back up Registry
/2. Edit file %windir%\inf\Nettcpip.inf in [MS_TCPIP.PrimaryInstall]
comment string ;:
; Characteristics = 0xA0 ; NCF_HAS_UI | NCF_NOT_USER_REMOVABLE
and add
Characteristics = 0x80
/3. Control Panel->Network Connections->Local Area Connection->Properties
Install protocol. Press Install button, select protocol, type Windows Inf path.
Select IPv4 protocol. (Unblock IPv4 uninstall button.)
Uninstall IPv4.
/4. delete registry key:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsock
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsock2
if need, delete registry key:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\tcpip
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\dhcp
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\dnscache
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\ipsec
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\policyagent
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\atmarpc
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\nla
/6. Install IPv4
/*. See too Re-installing WAN miniport devices
STTR
Posted 2013-03-08T21:33:07.063
Reputation: 6 180
1I have tried, it did not help. Thank you. – eomeroff – 2013-03-08T22:11:45.063
1I tried way 2 ant it also did not help. I can not find reset.log file :( – eomeroff – 2013-03-08T22:36:08.020
@SonOfOmer netsh int ipv4 reset C:\resetlog.txt or netsh int ip reset C:\resetlog.txt ? – STTR – 2013-03-08T22:48:28.037
now it says: There's no user specified settings to be reset. – eomeroff – 2013-03-08T23:10:28.840
1I tried way 4. I could not delete registry entry in second action. Neither I could set full permissions over registry. – eomeroff – 2013-03-09T18:03:46.570
@SonOfOmer See http://superuser.com/questions/547594/how-can-i-remove-all-com-ports-from-the-command-line-on-windows-7/547638#547638 change permission I add images to way too
– STTR – 2013-03-09T18:31:04.240I tried that it says "Unable to ave permission changes on #registry name# Access denied" – eomeroff – 2013-03-09T18:35:31.510
@SonOfOmer Run regedit with SYSTEM rights.Need Windows Driver Kit (WDK): ntsd -c qd regedit – STTR – 2013-03-09T18:50:27.483
@SonOfOmer http://www.microsoft.com/en-us/download/details.aspx?id=11800 download.
– STTR – 2013-03-09T18:58:03.6332
You can run regedit with SYSTEM rights by using PSExec too, much smaller download. One of the examples they post is running regedit as SYSTEM. psexec -i -d -s c:\windows\regedit.exe
@ScottChamberlain Thx! – STTR – 2013-03-09T19:56:48.377
1
From the Device Manager, navigate to Network Adapters and expand the tree. Right click and uninstall the ethernet card and reboot. Windows should autodetect the card and reinstall the appopriate drives. This should re-enable IPv4.
Keltari
Posted 2013-03-08T21:33:07.063
Reputation: 57 019
This fixed the problem for me. – Kieran Andrews – 2014-04-15T12:41:33.633
0
Got to Networking and sharing then Click on change adapter. Then right click on local area connection.
Double-click on Internet Protocol version 4 (TCP/IP4) and change as follows:
save
Gireesh Kumar
Posted 2013-03-08T21:33:07.063
Reputation: 1
This duplicates another answer and adds no new content. Please don't post an answer unless you actually have something new to contribute. – DavidPostill – 2016-10-14T08:35:17.160
Have you tried to remove the network connection? – Ramhound – 2013-03-08T21:37:05.787
@Ramhound Local area connection has disabled delete option in context menu. Do you mean that? I did create another wireless connection via wireless usb adapter, and it also is missing IPv4. Thanks. – eomeroff – 2013-03-08T21:43:57.223
Well its not possible to disable the IPV4 Adapter. Specific information about the hardware in question would be helpful. Have you tried a non-wireless connection? – Ramhound – 2013-03-08T21:51:48.093
Realtek PCIe GBE Family Controller is network card. – eomeroff – 2013-03-08T22:13:30.557
Have you tried a System Restore back to before it broke? – Ƭᴇcʜιᴇ007 – 2013-03-09T19:11:25.823
No I did not. I know only that system was not rebooted for long time, then after one reboot it went down. – eomeroff – 2013-03-09T19:14:22.443