Disable the Power Off option for the adapter:
1. Open Device Manager. (Win Key+R > type devmgmt.msc > OK)
2. Expand the Network adapters.
3. Right click on the Ethernet/Wireless Adapter and click Properties.
4. Click the Power Management …
Category: Wireless
Wireless – Wireless Router Asking for Username, Password and Logon Domain
Control Panel ->
Network and Internet ->
Network and Sharing center ->
Set up a new connection or network
Manually connect to a wireless network and click NEXT
Network Name: Type in network name that shows up for your router…