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Unidentified Network and no internet

Posted on 2013-12-05
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Last Modified: 2014-01-30
I have a customer with a laptop running Windows 7 Home that has lost the wired connection to the internet. When we connect wirelessly to a neighboring office wifi router it works fine. Also I cannot ping the wired router or other wired LAN workstations. The other workstations connect to the internet fine and can ping and access the problem laptop just not the other way. The laptop can see other shared folders on other workstations but not the internet or router. I have turned off the firewalls on the PC's but this didn't help. Also the network location for the wired network in 'Network and Sharing Center' is stuck on 'public' and I can't change it to 'work' or 'home'. The network connection name in the is 'unidentified network' and I can't change it. When I take the laptop to a different site and connect to a wired network it allows me to configured it as 'work'  or 'home' and the internet works fine.
Is this an issue of the network configuration being saved in the router or ?????
It is a older Linksys router. Any info would be appreciated. I have to go back to the customer's site and right now I am stuck. Thank you
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Question by:GDunsmore
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Expert Comment

by:Rick_O_Shay
ID: 39700982
It sounds like the problem is that it is stuck as public. Try deleting the connection and that add it back in again.
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Expert Comment

by:Darr247
ID: 39701569
Well, past experience says this type of situation often results in no followup from the asker after suggestions are posted.  :-|

But, here goes anyway...
Step 1 - click the 'start' orb, type in ncpa.cpl and hit Enter.
In the Network Connections window that opens, right-click the Local Network Connection and choose Disable from the context menu.  Network Connections - Local Network Connection - Context Menu (click for larger)Wait for it to grey out, indicating it has entered the disabled state, then right-click the Local Network Connection icon again and choose Enable.

If it still doesn't work, back in the Network Connections (ncpa.cpl) window, right-click the Local Network Connection icon and choose Status from the context menu (see image above).
In the Local Network Connection Status dialog that opens, click the Details... buttonLocal Network Connection Status - Network Connection Details - IPv4 Addressand in the Network Connection Details window, note what the IPv4 Address is (and report that back here, please).
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Expert Comment

by:Steve
ID: 39702063
while connected to the network with an issue, run an ipconfig /all and confirm if the IP, subnet, gateway & dns servers are correct.
if unsure, try comparing them to the working machines on the same network as only the IP address should be different.
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Expert Comment

by:Darr247
ID: 39702673
My suspicion is what you'll find when you "note what the IPv4 Address is (and report that back here, please)," is it will say Autoconfiguration IPv4 Address instead, and the adapter will have a 169.254.x.x APIPA range IPv4 address.

Like on this WiFi adapter Autoconfiguration (APIPA) IPv4 AddressThat usually happens when DHCP communication fails for some reason.


> It is a older Linksys router
Ensure it has the latest firmware updates from the Linksys Support Site (just enter the model number in that 'start here' box)...  you'll be asked to choose the version number (typically printed on the barcode label stuck to the bottom of the router) before the choices in firmware revisions are presented.
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Author Comment

by:GDunsmore
ID: 39706846
Thank you for you comments Rick-O-Shay and Darr247. I have deleted the network connection and readded it but it comes back public and doesn't let me choose any other location. When I took the laptop offsite to my shop it did join my network and asked for the location. I set to 'work' and everything was fine. When I took it back to the customer the original problem reoccurred with a locked in public location and no internet.
I have also disabled the network card, rebooted and reenabled but same problem. The IP4 address was initially in the 169 range but became a 192.168.0 subnet . The nic gets it's IP from the router. It is 192.168.0.125. I have set DHCP on the router for range 105 -150.
I have made the IP's on the nic static and hardcoded the gateway to 192.168.0.1 but still does not access the internet. The problem appears to be the DNS server address. I have tried static DNS addresses for the network card but still no connection. We are using the router to access the DNS server so the LAN server points to the router for DNS. All other workstations work fine.
I also have reset the router. It is an older Linksys and the owner is now going to upgrade it. I think I will wait until that happens before going back unless anyone can see something I missed.
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Expert Comment

by:Darr247
ID: 39707009
> The IP4 address was initially in the 169 range but became a 192.168.0 subnet .
When it switched to a 192.168.0.x address, you should have been able to change (in Network and Sharing Center) the network location, and then the red X between the router and the Internet would go away.
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LVL 27

Expert Comment

by:Steve
ID: 39708522
did you compare the IPconfig /all results to a working machine?

Can the client ping the gateway?

try running NSLOOKUP to confirm which DNS server is it trying to use and to confirm if DNS is the issue or not.
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Author Comment

by:GDunsmore
ID: 39710239
I know I should have been able to change the location but it would not let me.

The DNS server is set to be accessed through the router and the laptop got it's IP address from the router. But the router cannot be pinged from the laptop ????  The IP address is in the scope the router is using so its not from the main server. I will check again as soon as I can
but this will not be until after Christmas. I am in a different city from the problem PC.

They may upgrade their router before I get back but if not I can reconfigure the LAN server for DHCP and set it as the gateway. It can access the internet fine.
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Expert Comment

by:Steve
ID: 39710961
Okey dokey. At least we've now identified a possible issue to investigate. Let us know what happens....
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Accepted Solution

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GDunsmore earned 0 total points
ID: 39745321
As I was afraid they installed a new router and the computer was able to join the workgroup fine. It prompted for the location and they made it 'Work' and the network map shows wired
and wireless connections ok.
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LVL 27

Expert Comment

by:Steve
ID: 39752651
sounds like an issue with the DHCP/domain being provided by the router then. Is it working now?
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LVL 27

Expert Comment

by:Steve
ID: 39809239
Hi matey,

With regard to your closure request, if you feel none of our responses could be deemed as an answer/solution you can award points to any particularly helpful responses or any advice you feel pointed you in the right direction.

If however, you feel no progress was made at all, it may be better to request the question be deleted as it may not be much help to anyone researching the same issue in the future.
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Author Closing Comment

by:GDunsmore
ID: 39820334
Did not have a solution other than to change to router which caused a change in the environment and Windows must have then recreated the network map and it included the network locations that were being blocked before.
Thanks for the good discussion but I don't know how to award points because no one could pin point the cause or a solution other than changing the router which I have done before.
Moderator please close the question or let me know what to do now.
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