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I have a very strange problem.

I am unable to ping windows PCs on my local network, whereas they are able to ping my ubuntu laptop.

Another thing is I can actually VNC onto one of the PCs but cant to ping it. Only thing I am able to ping on the local network is localhost and the router.

Has anyone got any ideas why this may be happening?

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The Windows computers might be treating the network as 'Public', or 'Network discovery' might be turned off. See if changing the network to 'Home' / 'Work' and turning on 'Network discovery' helps. – Soumya Jun 20 '11 at 9:52
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Do you try to ping with name or with ip address? – Turbo J Jun 20 '11 at 13:37
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You have firewall installed on windows machine which is configured to block ICMP packets.

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Hi, the windows machines only have antivirus and no software firewall. Wierd thing is, if I boot from my backtrack 5 live CD I can actually ping these devices :S – Sidi0u5 Jun 20 '11 at 9:55
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@Sidi0u5 Maybe its the windows standard firewall? – cularis Jun 20 '11 at 10:57
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