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I bought an HTPC based on the GA-E350N WIN 8 and using a TL-WN723N for WiFi.
From day 1 I started to have problems with the computer losing WiFi connection and the yellow exclamation mark appearing or the TL USB adapter disappearing from the network adapters. To fix the problem I have to unplug and plug the adapter again. This happened both in Windows 7 x64 and Windows 8.1 x64.
It's definitely a problem with the computer since I've tried the wifi adapter in other computers and it worked just fine.
I already unchecked the "Allow the computer to turn off this device" and also disable USB selective suspend.
What could it be?
Have you installed the TL-WN723N driver ?
– harrymc – 2014-06-24T10:42:20.243@harrymc Yes, of course. – emzero – 2014-06-24T12:11:10.820
"day 1" - is this a new computer? If so, use the warranty. – harrymc – 2014-06-24T16:16:10.830
Yes, I'm going to use it but I can't think of a hardware fault causing this kind of behaviour. – emzero – 2014-06-24T20:21:47.297
What is the error message when you hover over / click the yellow exclamation mark? That will tell us more about the problem(s) you are experiencing. – R-D – 2014-06-30T14:12:29.013
Have you checked the USB socket for damage/dirt? – Tog – 2014-07-02T12:46:50.210