Networking not working

windows 10 pro insider preview, evaluation copy. build 10074.

problem no network connection @ all, not lan. cables checked , connected correctly router has internet , dhcp enabled.

troubleshooter results:

one or more network protocols missing on computer - not fixed

windows sockets registry entries required network connectivity missing.
restore network protocols default settings - completed

one or more network settings missing on computer.

ipconfig /all output:

windows ip configuration

   host name . . . . . . . . . . . . : davepc2
   primary dns suffix  . . . . . . . :
   node type . . . . . . . . . . . . : hybrid
   ip routing enabled. . . . . . . . : no
   wins proxy enabled. . . . . . . . : no

ethernet adapter local area connection:

   connection-specific dns suffix  . :
   description . . . . . . . . . . . : qualcomm atheros ar8161 pci-e gigabit eth
ernet controller (ndis 6.30)
   physical address. . . . . . . . . : 94-de-80-d5-73-f9
   dhcp enabled. . . . . . . . . . . : yes
   autoconfiguration enabled . . . . : yes
   link-local ipv6 address . . . . . : fe80::d5a9:843b:da35:6859%9(preferred)
   autoconfiguration ipv4 address. . : 169.254.104.89(preferred)
   subnet mask . . . . . . . . . . . : 255.255.0.0
   default gateway . . . . . . . . . :
   dhcpv6 iaid . . . . . . . . . . . : 244637312
   dhcpv6 client duid. . . . . . . . : 00-01-00-01-1a-ab-d4-40-94-de-80-d5-73-f9

   dns servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                       fec0:0:0:ffff::2%1
                                       fec0:0:0:ffff::3%1
   netbios on tcpip. . . . . . . . : enabled

tunnel adapter isatap.{d2b23388-1d40-4a60-95f3-128f2f539605}:

   media state . . . . . . . . . . . : media disconnected
   connection-specific dns suffix  . :
   description . . . . . . . . . . . : microsoft isatap adapter #2
   physical address. . . . . . . . . : 00-00-00-00-00-00-00-e0
   dhcp enabled. . . . . . . . . . . : no
   autoconfiguration enabled . . . . : yes

also, cpu seems @ constant 100% usage:

   computer connected network appreciated, thank you.

i did not roll drivers.  i downloaded them manufacturer, forced change of driver browsing files (not letting windows auto detect "best" version).

1. download driver manufacturer.
2. go device manager , adapter.  in driver properties, "update driver."
3. browse computer driver software.
4. let me pick list of device drivers on computer.
5. have disk...
6. navigate folder , chose downloaded driver. 

this method let me force driver change , eliminate problem.

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