Solved

Windows 7 PC is Getting Unidentified Network

Posted on 2015-01-08
8
352 Views
Last Modified: 2016-11-23
PC is a new Dell OptiPlex 3010 is running Windows 7 Pro in a Windows domain (SBS2008). All other workstations are working fine
-      Cant grab an IP address
-      Network adaptor is configured for DHCP
-      Attempted Hard coded a static IP to no avail
-      Replaced network cable
-      Checked and confirmed data port

Ran diagnostics. NIC passes
Uninstalled the NIC driver, downloaded and installed the latest driver from Dell to no avail
Uninstalled the McAfee Internet Security software
Dell Replaced the motherboard under warranty – to no avail
Attempted safe-mode with networking – to no avail

I'm trying to avoid having to rebuild the PC.
Any suggestions would be appreciated
0
Comment
Question by:agieryic
[X]
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
  • 5
  • 2
8 Comments
 
LVL 48

Assisted Solution

by:dbrunton
dbrunton earned 100 total points
ID: 40538690
If you hard code a static IP in this machine with the correct netmask appropriate for the domain can you ping other machines in this domain, can you ping the gateway, can you ping the internet?

What happens if you move this machine elsewhere and use a different data port?
0
 
LVL 1

Author Comment

by:agieryic
ID: 40538699
- attempted to logon as the domain admin but since there's not network connection, it cant authenticate.
- attempted system restore to no avail
- I will attempt placing the PC into a workgroup
0
 
LVL 4

Accepted Solution

by:
Jason Johanknecht earned 400 total points
ID: 40538704
Power cycle all network switches.  I had this happen a couple of weeks ago where all computers worked fine until they were shut down.  Then no network functions period.  Power cycled the network switch and everything worked great for the client.  May not solve the problem, but is easy resolution to try.  If that fails, try power cycle on your Router.
0
Major Incident Management Communications

Major incidents and IT service outages cost companies millions. Often the solution to minimizing damage is automated communication. Find out more in our Major Incident Management Communications infographic.

 
LVL 1

Author Comment

by:agieryic
ID: 40538718
I did move the PC to a different data port on the switch and to a different good known data port in a different office
0
 
LVL 1

Author Comment

by:agieryic
ID: 40538730
I cannot ping out anywhere after hardcoding. It does ping via loopback 127.0.0.1 but that doesn't mean anything referencing this issue
0
 
LVL 48

Expert Comment

by:dbrunton
ID: 40538799
Try booting from a Linux live CD such as Ubuntu.  See if that can access the Internet.
0
 
LVL 1

Author Comment

by:agieryic
ID: 40538831
resolved
I have a 48 port Dell PowerConnect switch. It appears the first 12 set of ports are hung but existing users are connected. If I plug into any of the free ports in the first 12 set of data ports, I get no internet connection. If I plug into any of the last 3 sets of ports on the switch, I can connect to the internet.

At this time I cannot power off/on the switch because users are working. I'm sure once I power it off and back on, all ports will be fine

Thanks to all for you supported posts
0
 
LVL 1

Author Closing Comment

by:agieryic
ID: 40538836
Moving the PC to another data port from the switch or physical location would have resolved the issue - but as mentioned above, I did so but that data port was on the same 12 ports that were hung up

Thanks again for all your help
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

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

If you get continual lockouts after changing your Active Directory password, there are several possible reasons.  Two of the most common are using other devices to access your email and stored passwords in the credential manager of windows.
An article on effective troubleshooting
This Micro Tutorial will give you a introduction in two parts how to utilize Windows Live Movie Maker to its maximum capability. This will be demonstrated using Windows Live Movie Maker on Windows 7 operating system.
The Task Scheduler is a powerful tool that is built into Windows. It allows you to schedule tasks (actions) on a recurring basis, such as hourly, daily, weekly, monthly, at log on, at startup, on idle, etc. This video Micro Tutorial is a brief intro…

751 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