Take some time and double confirm that your browser(s) are not using a proxy server by mistake.
In Internet Explorer click the little gear icon in the top right hand corner below the "X" (close window) and choose internet options.
Choose the connections tab and click the LAN settings button and uncheck anything that is checked and click OK.
I noticed you have an normal ethernet adapter (Realtek PCIe GBE Family Controller) can you temporarily connect that with a standard Cat5 cable and see if the problem persists?
Check here C:\Windows\System32\drivers\etc
Open the file called hosts it should look like this
# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
# localhost name resolution is handled within DNS itself.
# 127.0.0.1 localhost
# ::1 localhost
If it doesn't, edit it in notepad until it does (you may have to remove the read only flag in the file properties before you can edit it and save it successfully)
Finally what security suite software do you currently have installed and or, perhaps a better questions is what security suite software have you previously had installed.
We've seen it thousands of times where an unsuccessful removal of Security Suite Software has left remnants which result in this type of behavior.
Sometimes you can check the properties of your network card and see this.
Hold the Windows Logo key and strike the R key and type
ncpa.cpl
In the resultant properties box select the network card you are currently using, right click and choose properties
In the area labeled "This connection uses the following items:"
Scroll if necessary and see if you can find any reference to a software product that you are currently using or formerly used if you find something suspicious just uncheck it and see if that helps.
Otherwise you may want to Google for the vendor specific proprietary removal tool and use that to rid yourself of any remnants. Just type the product into your search engine followed by the two words "removal tool" and see what turns up.
Here are three of the most popular
Link Removed
https://support.norton.com/sp/en/us/home/current/solutions/kb20080710133834EN_EndUserProfile_en_us
Link Removed actually the link to that tool is further down in the article here
http://download.mcafee.com/products/licensed/cust_support_patches/MCPR.exe
