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Windows 7: Can Map Network drives between two machines, but not on others

04 Mar 2012   #1

Windows 7 Ultimate 64
Can Map Network drives between two machines, but not on others

I have 6 laptops in my house (Don't judge me!) and one Netgear DGN2000. All the laptops run W7U, the big ones, 64-bit, the little ones, 32-bit

Laptop 1 drives my television (I stopped watching broadcast TV years ago) and it is pretty much just a media player and a NAS machine. It is connected by LAN cable to the router.

Laptop 2 drives my office, and I use it for all my normal computer stuff, as well as being my download and DVD making/ripping machine. It's the one I'm on now. I share 2's download folder to 1, as well as two TB drives containing all my media. It is connected via WiFi to the router.

So I've never had any trouble sharing folders or hard disks between these two machines. Enter two more laptops, both are 10" Asus Eee PC, R1005HA model. One is work-issued(3), and the other is mine(4). Both run W7U, however I can't for the life of me, map to any other network shared folders on them. Even ones that are being shared already between the big two. Furthermore, on ANY of the laptops, even the two sharing ones, If I ask Windows to "See full map" in my network settings, it says, "Windows cannot discover any other computer or device."

To make things even weirder, when I have these four machines running, and log into my router and ask to see attached devices, it only shows the one that connects by LAN.

Their IP adresses are:

1 -
2 -
3 -
4 -

(11 and 12 belong to the other two laptops I don't really use that are in pieces, 14 belongs to my phone)

I can ping from 13 to 10
I can ping from 16 to 10 SOMETIMES (I can see no rhyme or reason for the inconsistency, even stranger, I can navigate my way around a network drive on 10 from 16, and simultaneously not be able to ping 10 from 16...)
I can't ping from 13 to 16
I can't ping from 16 to 13

Here are the things I've looked at so far:

IP addresses - I've established there aren't any IP address clashes
IPv6 settings - These I have made identical to each other as far as it is appropriate
UPnP on the router is enabled.
Sharing options - All these are set the same across the network
Network locations are set to home on all machines.
All the shared drives are shared amongst Everyone

The problem seems to be with the network, since the machines simply can't see each other, and I'm not sure why. Any suggestions would be greatly appreciated (except the suggestion my girlfriend made, which was "Use less computers". Was not appreciated!)

My System SpecsSystem Spec


 Can Map Network drives between two machines, but not on others

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