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Windows 7: "Windows is not connected to a network" when I am.

27 Jun 2010   #1
Everlong

 
"Windows is not connected to a network" when I am.

This is annoying me now, I've tried everything I know but nothing seems to work. I've looked on this forum and other forums and tried what's been recommended for similar problems but nothing seems to work.

This problem started a couple of months ago when I was living on my University campus. I had a wired Ethernet connection and one day Windows was saying I'm not connected to a network and I couldn't see anyone on the network and they couldn't see me. I thought this was just a problem with the Uni connection, so I left it for now.

I came home this weekend where I use a wireless connection, and the same problem is happening. Network and Sharing centre is saying I'm not connected to a network, and the Internet connection icon i the task bar has the wireless icon with the gold star on it showing there is networks available. If I click that, at the top it says "Not connected", but it shows my wireless connection and says "Connected" next to it. I still can't see computers on the network either.

I'm using Windows Firewall and Microsoft Security Essentials on Windows 7 Ultimate. My wireless adapter is an Abit AirPace, and my Ethernet port is an Nvidia nForce NIC. If I disable Windows Firewall, then I can see other computers on my network, but I guess that's because by default, whatver network it's set me on is set to "Public".

I've checked all the needed networking services are enabled and running, and tried resetting the firewall settings to default. When I came home as well, it was the first time this Windows installation has seen this wireless connection as well as I did a clean install while I was living away, and normally it should have come up saying a new network has been found etc and to choose either Home, Public or Work, but none of that came up when I connected.

Any help would be appreciated as it's annoying when I need to transfer files between my computer and netbook.


My System SpecsSystem Spec
.
27 Jun 2010   #2
zigzag3143

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by Everlong View Post
This is annoying me now, I've tried everything I know but nothing seems to work. I've looked on this forum and other forums and tried what's been recommended for similar problems but nothing seems to work.

This problem started a couple of months ago when I was living on my University campus. I had a wired Ethernet connection and one day Windows was saying I'm not connected to a network and I couldn't see anyone on the network and they couldn't see me. I thought this was just a problem with the Uni connection, so I left it for now.

I came home this weekend where I use a wireless connection, and the same problem is happening. Network and Sharing centre is saying I'm not connected to a network, and the Internet connection icon i the task bar has the wireless icon with the gold star on it showing there is networks available. If I click that, at the top it says "Not connected", but it shows my wireless connection and says "Connected" next to it. I still can't see computers on the network either.

I'm using Windows Firewall and Microsoft Security Essentials on Windows 7 Ultimate. My wireless adapter is an Abit AirPace, and my Ethernet port is an Nvidia nForce NIC. If I disable Windows Firewall, then I can see other computers on my network, but I guess that's because by default, whatver network it's set me on is set to "Public".

I've checked all the needed networking services are enabled and running, and tried resetting the firewall settings to default. When I came home as well, it was the first time this Windows installation has seen this wireless connection as well as I did a clean install while I was living away, and normally it should have come up saying a new network has been found etc and to choose either Home, Public or Work, but none of that came up when I connected.

Any help would be appreciated as it's annoying when I need to transfer files between my computer and netbook.

Are you running "homegroup" by chance?
My System SpecsSystem Spec
27 Jun 2010   #3
Everlong

 

Homegroup is running, but I'm not connected to it. If I click "choose homegroup" in Network and Sharing centre, it says "The computer cannot connect to a homegroup" and says I need to connect to an existing network.
My System SpecsSystem Spec
.

27 Jun 2010   #4
WindowsStar

Windows 7 Enterprise (x64); Windows Server 2008 R2 (x64)
 
 

Change the network settings to Home Network and see if that helps.
My System SpecsSystem Spec
27 Jun 2010   #5
zigzag3143

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by Everlong View Post
Homegroup is running, but I'm not connected to it. If I click "choose homegroup" in Network and Sharing centre, it says "The computer cannot connect to a homegroup" and says I need to connect to an existing network.

Harry

I am thinking it might be IPv6. can you run ipconfig /all and upload a screen shot? IPv6 in homegroup especially can have connectiviity issue on some systems. Especially if there are non win 7 machines.

Ken
My System SpecsSystem Spec
27 Jun 2010   #6
Everlong

 

Quote   Quote: Originally Posted by WindowsStar View Post
Change the network settings to Home Network and see if that helps.
I've tried setting the default setting for unidentified networks to be Home Networks, but that doesn't make a difference.

Here's what I see in Network and Sharing centre, notice the bottom right where it shows I'm connected to a network, but Windows says I'm not.

-nands.jpg


My System SpecsSystem Spec
27 Jun 2010   #7
Everlong

 

Quote   Quote: Originally Posted by zigzag3143 View Post
Quote   Quote: Originally Posted by Everlong View Post
Homegroup is running, but I'm not connected to it. If I click "choose homegroup" in Network and Sharing centre, it says "The computer cannot connect to a homegroup" and says I need to connect to an existing network.

Harry

I am thinking it might be IPv6. can you run ipconfig /all and upload a screen shot? IPv6 in homegroup especially can have connectiviity issue on some systems. Especially if there are non win 7 machines.

Ken
Here's my ipconfig. There is a laptop that connects to the wireless network that is running XP.

-ipv6.jpg


My System SpecsSystem Spec
Reply

 "Windows is not connected to a network" when I am.




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