More tasks for you to do. You may stop and there's no need to proceed to the next step if is works.
Disable any Firewalls and Security Software from your computer.
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See if ipconfig release and renew helps.
Click Start, and then click Run. Type cmd, then press enter.
From the command prompt type ipconfig /release, then press ENTER.
Then type ipconfig /renew, then press ENTER.
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Click on Start=> All Programs=> Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.
In the command prompt or black screen type the following:
To Reset WINSOCK type: netsh winsock reset catalog then press enter
To Reset IPv4 TCP/IP type: netsh int ipv4 reset reset.log then press enter
To Reset IPv6 TCP/IP type: netsh int ipv6 reset reset.logthen press enter
Restart your computer after and test your internet connection.
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Then do an ipconfig /all by following this directions and post it here.
Click on Start => in Quick search type the word cmd on the blank field. From the black screen, type the word ipconfig /all and press enter. Right click on the black screen or Command prompt then choose Select All and Paste the results here.