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Windows 7: Wireless Network - IP address not resolving automatically


01 Dec 2010   #1

Windows 7 Ultimate x64
 
 
Wireless Network - IP address not resolving automatically

Hello everyone,

Up until yesterday, everything was sunshine and lollipops in the land of Windows 7. However, I am now no longer able to connect to my Home Network.

Instead, Windows continually insists that my network is "Unidentified Network" and refuses to provided internet access despite the fact that I have not changed it's SSID or the WPA2 password.

Through your forums I've determined that Windows is no longer resolving its IP automatically, however all of the proposed solutions do not resolve my issue. My router is properly set up for DHCP and "resolve IP automatically" is set in both IPv4 and IPv6 in my control panel settings.

I am using a Belkin F6D4050-2 Enhanced Wireless Adapter to connect. I have renewed and reset my ipconfig, router and adapter more times than I care to recall. I do not have iTunes installed (and hence no Bonjour BS). I am using MSSE and Windows Firewall, neither of which has caused problems in the past.

What could have possibly caused this sudden change, and more importantly how do I fix it?


My System SpecsSystem Spec
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01 Dec 2010   #2

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by ssobieraj View Post
Hello everyone,

Up until yesterday, everything was sunshine and lollipops in the land of Windows 7. However, I am now no longer able to connect to my Home Network.

Instead, Windows continually insists that my network is "Unidentified Network" and refuses to provided internet access despite the fact that I have not changed it's SSID or the WPA2 password.

Through your forums I've determined that Windows is no longer resolving its IP automatically, however all of the proposed solutions do not resolve my issue. My router is properly set up for DHCP and "resolve IP automatically" is set in both IPv4 and IPv6 in my control panel settings.

I am using a Belkin F6D4050-2 Enhanced Wireless Adapter to connect. I have renewed and reset my ipconfig, router and adapter more times than I care to recall. I do not have iTunes installed (and hence no Bonjour BS). I am using MSSE and Windows Firewall, neither of which has caused problems in the past.

What could have possibly caused this sudden change, and more importantly how do I fix it?
You will need to post a screen shot of your ipconfig /all for me to look at. Bonjour installs with a bunch of Adobe apps, like iTunes or Adobe photo suite.
My System SpecsSystem Spec
01 Dec 2010   #3

Windows 7 Ultimate x64
 
 

Thanks for looking into this, chev65.

I have no Adobe products installed (apart from Flash) and no iTunes installed, so I'm confident that neither of those are at fault.


Attached Thumbnails
Wireless Network - IP address not resolving automatically-ipconfig.png  
My System SpecsSystem Spec
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02 Dec 2010   #4

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by ssobieraj View Post
Thanks for looking into this, chev65.

I have no Adobe products installed (apart from Flash) and no iTunes installed, so I'm confident that neither of those are at fault.
About the only problem I see there is that your DNS servers are listed "three of them" where it would normally show your default gateway which points to the routers DNS servers.

It may help to remove those DNS entries then enter your DNS servers into the routers control panel where it says to put the DNS servers.
My System SpecsSystem Spec
02 Dec 2010   #5

Windows 7 Ultimate x64
 
 

Quote:
About the only problem I see there is that your DNS servers are listed "three of them" where it would normally show your default gateway which points to the routers DNS servers.
Ah yes, I see the issue. The DHCP server is listed as 192.168.1.1, but the DNS server is listed as 3 different IP addresses (none of which the CPU can access without the internet).

How would I go about removing/changing the DNS Server entries in Windows 7?

I haven't had to add anything to my router's control panel yet, hopefullly once I've sorted the DNS-lookup in my CPU then the router will forward the IP to the DNS properly (which I'm assuming it has, until this strange incident).
My System SpecsSystem Spec
02 Dec 2010   #6

Windows 7 Ult, Windows 8.1 Pro,
 
 

Well it looks like the DNS servers were typed into your Ipv4 properties and assigned manually for some reason. You need to right click on the active connection then highlight Ipv4, right click and choose properties, you will see a place for DNS servers although I can't say for certain where the DNS entries are coming from, either they were assigned by someone or they came from your router or ISP.

They would need to be removed from there first "if they are there" then you should try assigning different DNS servers in your routers set up page.

Although most of the time your ISP will have something there by default it's best to define the DNS servers you want to use in your routers settings. I use googles DNS servers of 8.8.8.8 and 8.8.4.4 Those need to be added to your routers DNS settings.

If the DNS isn't the problem, it may help to just go into the "network and sharing center" then upper left to the "wireless credential manager" and delate the credential for this connection and then create a new one using the manual wireless connection setup. Be sure and define what ever settings your router is using like the SSID, WPA2 and AES.
My System SpecsSystem Spec
02 Dec 2010   #7

Windows 7 Ultimate x64
 
 

Resolved!

Although you've been helpful chev, I have to say that I did absolutely nothing when I got home from work today. After booting the computer, ready to apply the DNS changes, I noticed that I had my home network settings back. Nothing on my part was done.

Here's what I think: My router assigns 1 day leases on IP addresses, and my computer managed to simply muck up the lease twice consecutively, causing 2 days of lost connections.

Apart from that...maybe the gremlins were beat out of the network adapter by the silicon elves...

Thanks for your help in any case, I should know how to get it going in a hurry in the future.
My System SpecsSystem Spec
02 Dec 2010   #8

Windows 7 Ult, Windows 8.1 Pro,
 
 

Rebooting fixes more problems that just about anything else so I'm not too surprized. I can't say what caused the problem in the first place, sometimes winsock gets messed up other times it's the TCP/ip stack, routers are also known to go haywire sometimes but they can usually be fixed with a reset. Next time this happens run the batch file below and let me know if it fixes anything, hopefully you won't need to use it.

Try running this batch file which will reset winsock, reset the TCP/IP stack and release renew your IP.


My System SpecsSystem Spec
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 Wireless Network - IP address not resolving automatically




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