Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

How to fix Server 2012 with unidentified network.

Posted on 2015-01-22
7
485 Views
Last Modified: 2015-01-27
Installed a fresh copy of Server 2012. It got DHCP from the firewall and came up. I installed all the updates. Then I renamed the server and changed the IP from DHCP to static. Plugged it into the network and it says unidentified network. I uninstalled and reinstalled the NIC and nothing. I cut on network discovery and nothing. Changed IP's again and nothing.
0
Comment
Question by:aando
  • 4
  • 3
7 Comments
 
LVL 5

Assisted Solution

by:Aaron
Aaron earned 200 total points
ID: 40564682
If you plug a laptop into the same port does it have any issues like this?
Might want to check your Gateway, DNS and subment mask...
Can you ping anything else on the network(DNS or other PCs or printers)?
Is this a new network or are you just adding more? I was thinking you might want to remove and add to domain again after that name change if it is an established domain... Sometimes name change you can loose the trust relationship.
0
 

Accepted Solution

by:
aando earned 0 total points
ID: 40564965
Its on a workgroup. It can't talk to anything. Network says Public/Network unidentified. Can't ping the gateway or anything. No traffic is being routed.
0
 

Author Comment

by:aando
ID: 40565014
I plugged it into another Domain, cut on DHCP and it started working. Put it back on static and moved it to the other network and it changed again but still working.

Thanks,
0
Easy, flexible multimedia distribution & control

Coming soon!  Ideal for large-scale A/V applications, ATEN's VM3200 Modular Matrix Switch is an all-in-one solution that simplifies video wall integration. Easily customize display layouts to see what you want, how you want it in 4k.

 
LVL 5

Expert Comment

by:Aaron
ID: 40565017
And did you try the same cable with another PC or laptop? Just to make sure that isn't where the issue is? I had a NIC go the other day and it was still giving blinking lights but showed uniedntified network. Do you have another card or maybe like a USB adapter you could temporarily use(usb to ethernet "RJ45" or even USB to wifi just to test it).

Have you tried in command prompt -
ipconfig /release
ipconfig /flushdns
ipconfig /renew
0
 
LVL 5

Expert Comment

by:Aaron
ID: 40565019
Okay great, ha ha always crazy how these things act sometimes. Setup 100 PCs the same and get 1 that has a random issue.
0
 
LVL 5

Expert Comment

by:Aaron
ID: 40565045
So removing and adding to domain/workgroup worked along with changing the dns/subnet mask/IP/gateway (you chose to do this by adding back to dhcp then back to static) did work? Or that it was indeed the trust issue?

Why close the question if I answered it?
-Not objecting just curious (I have only been on experts a few months)
0
 

Author Closing Comment

by:aando
ID: 40572363
Apparently it did lose trust but moving to a couple different networks and back fixed it.
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This is the first one of a series of articles I’ll be writing to address technical issues that are always referred to as network problems. The network boundaries have changed, therefore having an understanding of how each piece in the network  puzzl…
In this Micro Tutorial viewers will learn how to restore their server from Bare Metal Backup image created with Windows Server Backup feature. As an example Windows 2012R2 is used.
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question