In order to see the TCP\IP resources you should be on the same subnet and make sure you're not blocked by a firewall. See if you can ping the resource. To make sure the problem is in the network, you should try connecting the resource directly to your computer using a cross-cable and see if you can access it. If all else fails, you can reset the unit back to it's factory defaults and then when you connect it directly to your computer you should be able to see it. Keep in mind that this action will remove all settings, programs and so on.
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