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I am running Windows 7 on two computers connected via crossover ethernet cable. I lock both computers when I am going to be away for a while. When I unlock the left computer, the mapped network drive connecting it to the right computer is visible, but with a red X over it in My Computer. When I click on it, I get a message saying the network drive cannot be accessed and the network resource has not been restored. I have to disable the network adapter on both computers, re-enable network discovery, and re-enable the network adapters to get the drive to work again. I know the connection is still there because I can ping each computer from the other. The right computer never has its network connection disabled after being locked/unlocked. I've googled this with no relevant results, and I have no clue what could be causing this on one machine but not the other.
Any help is greatly appreciated.
Because the network is suspended when the boxes sleep. – Daniel R Hicks – 2013-02-28T00:12:27.367
If these are desktop boxes (never battery powered) check the power management settings of your network adapters. Make them always powered and allow them to wake the computer. – Daniel R Hicks – 2013-02-28T01:07:17.293