Windows 8.1 can't connect Ethernet Doesn't Have A Valid IP Configuration, and /renew unable to contact my DHCP server.

Toggle sidebar Toggle sidebar
S

Sam_145

Commendable
Jun 12, 2016
14
0
1,510
I'm a university student so I'm using there local internet, and for some reason last night my ethernet connection just dropped and since then I've been having the above issues,

I've tried pretty much everything I've read online, all the netsch resets, and install for ipv4, ipconfig release,flush and then renew gave the unable to contact DHCP server.

I've reinstalled my ethernet driver both through the automatic update on the driver command panel, and then tried the same thing with the realtek driver from my manufacturers site.

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\WINDOWS\system32>ipconfig /release

Windows IP Configuration

No operation can be performed on Local Area Connection* 2 while it has its med
disconnected.

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::6159:e241:ce47:dfe5%11
Autoconfiguration IPv4 Address. . : 169.254.223.229
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

Wireless LAN adapter Local Area Connection* 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Wireless LAN adapter WiFi:

Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2001:630:53:b78:31b6:3fcf:56d:ab53
Temporary IPv6 Address. . . . . . : 2001:630:53:b78:3d00:65ac:951f:68f3
Link-local IPv6 Address . . . . . : fe80::31b6:3fcf:56d:ab53%3
Default Gateway . . . . . . . . . : fe80::81%3

Tunnel adapter isatap.guest.rdg.ac.uk:

Media State . . . . . . . . . . . : Media unoperational
Connection-specific DNS Suffix . :

Tunnel adapter isatap.{A353598D-2868-4A34-ADCA-79C18D81A8D6}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

C:\WINDOWS\system32>ipconfig /flushdns

Windows IP Configuration

Successfully flushed the DNS Resolver Cache.
 
Solution
Mark RM
that's excellent, DSIM is usually a pita so we know at least your windows image must have been accessible. OK, the only thing I can think of is to refresh the TCP/IP stack now that we know the files are good, and valid... the problem is with Win 8.1 you get a permissions error BUT there's a work around, as described in this thread...
http://answers.microsoft.com/en-us/windows/forum/windows_8-networking/how-do-i-reset-the-tcpip-stack-in-windows8/f270af26-5973-45b6-a6a9-ed8df6bc2118

Barring that, test with another NIC.
Sort by date Sort by votes
Mark RM

Mark RM

Admirable
Jul 16, 2014
2,658
1
7,960
I hate to be that guy, but ...open command prompt as admin and run sfc /scannow ... I've found a few instances where mutilated file systems have just caused the tcp stack to not work. In some cases I was even unable to actually repair the windows file systems. Anyhow, run it and report back. There a few things we can do here.
 
Upvote 0 Downvote
S

Sam_145

Commendable
Jun 12, 2016
14
0
1,510
Hope this is of some help, and I'd appreciate any further help on this greatly.

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\WINDOWS\system32>sfc /scannow

Beginning system scan. This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection found corrupt files but was unable to fix some
of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For
example C:\Windows\Logs\CBS\CBS.log. Note that logging is currently not
supported in offline servicing scenarios.

C:\WINDOWS\system32>
 
Upvote 0 Downvote
Mark RM

Mark RM

Admirable
Jul 16, 2014
2,658
1
7,960
OK that sucks, usually this command returns no problems, but in your case you have corruption/missing files/wrong files on the OS.

What can you do about it?

Reboot in safe mode and run the command again, sometimes you get better success on repairs if you do that. press and hold the shift key and select restart.

Article on sfc
https://support.microsoft.com/en-ca/kb/929833

Revert to an older restore point if your computer has one. http://windows.microsoft.com/en-CA/windows-8/restore-refresh-reset-pc

BACKUP EVERYTHING that is important to you before you start and ask yourself WHY the computer has become corrupt. Especially on laptops run your manufacturers system diagnostics and be thinking about the hard drive possibly failing.

Anyhow, backup first, that's important, and then proceed to attempt the repairs.
 
Upvote 0 Downvote
Mark RM

Mark RM

Admirable
Jul 16, 2014
2,658
1
7,960
that's excellent, DSIM is usually a pita so we know at least your windows image must have been accessible. OK, the only thing I can think of is to refresh the TCP/IP stack now that we know the files are good, and valid... the problem is with Win 8.1 you get a permissions error BUT there's a work around, as described in this thread...
http://answers.microsoft.com/en-us/windows/forum/windows_8-networking/how-do-i-reset-the-tcpip-stack-in-windows8/f270af26-5973-45b6-a6a9-ed8df6bc2118

Barring that, test with another NIC.
 
Upvote 0 Downvote
Solution
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom