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I have 2 windows systems...

  1. Windows 7 (
  2. Windows 8 (

Both are connected to WiFi router. They have been assigned address & respectively. I have added them to home group and I am able to ping and connect Windows 8 system from Windows 7.

I am having trouble connecting to Windows 7 system from Windows 8 system. I can't even ping Windows 7 system. Windows 7 system's user is administrator (default administrator account from secpol.msc). File sharing, Remote Access, network discovery are all enabled. Someone please help me connect.

I found that this is the issue of Kaspersky Internet Security 2012. If I disable firewall, it works. I tried opening port 3389 in Kaspersky. It is still blocking access.

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3389 TCP right? – Mark Allen Oct 6 '12 at 9:04
Yes. I followed the approach given in but still it is blocked. – Prabhat Oct 6 '12 at 9:53
try to open 3389 port in Windows Firewall too. – Valter Henrique Oct 26 '12 at 13:07
The Windows Firewall should be off if there's a 3rd-party one. And this kinda reinforces my experience that all kinds of strange things break if you install such crap, hooray :-) – Joey Oct 27 '12 at 12:50
For what it is worth, this is probably totally on the endpoint, Windows 7, and has little to do with the Windows 8 client end of things. Most firewalls and settings block incoming stuff, not outgoing. – Mufasa Oct 27 '12 at 19:30

I think 3389 is not the only port that must be open on the firewall; check this link for more information directly from the source: I'd also try enabling ports 135 and 447

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