New machine doesn't like my LAN.

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2 Dec 2010
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DPD rang the doorbell today, a while later I had a new main rig up and running. Wohoo! :)

To the problem though: The new machine, running Windows 7 Ultimate x64, has full internet access and in general is working flawlessly. As far as the other machines on the network are concerned though, it doesn't exist. And the new machine won't ping them either. :(

It can ping the router fine, but anything else gives me "Destination host unreachable". None of the machines are in any homegroups and they're all on the same subnet and workgroup.

Any ideas...?
 
Network discovery and sharing are on, just double-checked. :)

I've tried to put them on the same homegroup, but none of them can see the homegroup I've created on one of the machines. I think it's actually network wide - none of the computers seem to be able to ping eachother now. They're all visible with net view, though. Going to try rebooting my router, haven't done that for a few months... :P
 
I've tried with the firewall on and off. No change. Restarting the router didn't help, which I didn't think it would anyway. That E3000 is one hardy piece of silicon.

I'm in Sweden now so I can't try much anyway, I'm afraid. Keep bouncing ideas though, by all means. :)

The setup is an E3000 router and an all-wireless network with a mix of 11g and 11n units. No VLANs configured, all on the same LAN and subnet. These units in particular, I'm sorry to say, are 11g. I've tried pinging by both the hostname and the IP with the same result for both. Like I say, they do show up with the net view command and they appear in Windows's network view.
 
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