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Windows 7: Cannot access other computers when IPv4 turned on

19 Aug 2012   #1

Win 7 64 bit
 
 
Cannot access other computers when IPv4 turned on

I have a brand new desktop running Win 7 64 bit and a laptop running Win 7 Ultimate.

The laptop uses IPv4 to connect, verified via ipconfig. The desktop uses IPv6. Each can see one another on the network, but cannot access one another. If I uncheck IPv4 on the laptop, I can then access the desktop PC, but cannot surf the internet. Once I click it back on, I lose access to the desktop.

I have tried connecting to both with and without homegroups enabled, but I think it's the IPv4 on the laptop that's causing the issue.

How can I get these two to play nice? The laptop hooked up wirelessly with an Aetheros AR5007EG adapter via Realtek PCIe FE Ramily controller. Can I force the laptop to use IPv6 somehow?

Thanks in advance. I've been banging my head since 930 this morning.

My System SpecsSystem Spec
19 Aug 2012   #2

Microsoft Community Contributor Award Recipient

Windows 7 Ult, Windows 8.1 Pro,
 
 

Far as I know everything should still be using IPv4 to connect to the internet. All your machines should be using IPv4.

IPv6 is used only on the LAN in Windows and can only help with limited functionality for accessing the internet. Not many ISP's have IPv6 set up at this point and there aren't many IPv6 web sites at this point in time, I believe you are confused on this.
My System SpecsSystem Spec
19 Aug 2012   #3

Win 7 64 bit
 
 

The new desktop is definitely connecting thru ipv6, as listed in the ipconfig.
My System SpecsSystem Spec
.


19 Aug 2012   #4

Microsoft Community Contributor Award Recipient

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by wolfgrrl View Post
The new desktop is definitely connecting thru ipv6, as listed in the ipconfig.
Good luck with that.
My System SpecsSystem Spec
19 Aug 2012   #5

Win 7 64 bit
 
 

Regardless, why sould networking function when I disable IPv4 on the laptop?
My System SpecsSystem Spec
19 Aug 2012   #6

Microsoft Community Contributor Award Recipient

Windows 7 Ult, Windows 8.1 Pro,
 
 

Quote   Quote: Originally Posted by wolfgrrl View Post
Regardless, why sould networking function when I disable IPv4 on the laptop?
I have no idea, but I believe you are seeing a symptom of a bigger problem.

If you can post a screen shot the ipconfig/all it may be helpful.
My System SpecsSystem Spec
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 Cannot access other computers when IPv4 turned on





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