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Windows 7: I can ping a XP machine from my 7 machine. XP machine cannot ping back

03 May 2013   #1

Windows 7 Home Premium 64 bit
I can ping a XP machine from my 7 machine. XP machine cannot ping back

both are connected to the same router
the ip of the 7 machine is and the default gateway is
the ip of the XP machine is and the default gateway is

the 7 machine can ping both and and receive responses. I can even access the sharing on the xp machine by typing \\ into my windows explorer, but the xp machine cannot ping or access \\

this is really weird. I mean, for starters, it would appear that this router somehow has two ip addresses, secondly, I can ping AND get a response from one machine, but nothing from another.

I have no idea what's wrong

My System SpecsSystem Spec

03 May 2013   #2

Windows 7 Ultimate 64-bit

Hi mmeowcusa and welcome to Seven Forums.

Could you on both machines open command prompt by going to start - type in the search bar "cmd" - right click and run as administrator. (For windows 7 only)

For windows XP to open cmd- start - all programs - accessories - command prompt - right click run as administrator

type the following commands.
 ipconfig /release
 ipconfig /renew
Post back your results.
My System SpecsSystem Spec
04 May 2013   #3

Windows 8 Enterprise 32 bit

I would guess that you have an alternate IP address added on the 7 machine.

On the 7 machine, please go to: Network and sharing center --> Change adapter settings --> Double click network connection icon --> Double click TCP/IPv4 --> Advanced...

In the IP address there another IP address like 10.1.10...somewhat?
My System SpecsSystem Spec


 I can ping a XP machine from my 7 machine. XP machine cannot ping back

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