If you have problems with Atheros based Network wireless cards then do this below...
1. Enter Controlpanel select Ad Remove programmes and remove all off ekahau or Atheros Client Utulity.
2. Select windows configrue network settings at wireless settings.
If you have still problems then do below,
Right mouse at My computer ant select menage. Select services. Select Wireless Zero Config and select stop. Stop it.
Your wireless will be ready.
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