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I do have several computers in my office, and unfortunately, the network admin has yet to patch my cables (which I'm not allowed to). So far, I'm stuck with Wifi, so I configured one of my Windows 8 computers with ICS on the Wifi-module and route the rest of the computers through that one.

However, Windows seems to drop the wifi-connection and therefore kill internet access on two occasions: if I lock the computer and if the computer is inactive for some time.

For the first problem (wifi drop on locking the screen), I have not found any information whatsoever.

All I found so far are hints on the power settings, where the wifi can be deactivated if the computer progresses into power saving mode - I did change that without effect on the problem. According to some websites, this problem is quite known, but I haven't found a solution yet.

Any hints?

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Uncheck the box “Allow the computer to turn off this device to save power” present in the power management of the wifi properties – niry Oct 4 '13 at 8:46
    
Nope, it's still going offline. – Lars Oct 8 '13 at 6:46

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