Installed avast! free wired internet connection dead. try to uninstall still no

Avast Free Antivirus / Premium Security
1

so i try to Installed avast! free and sudenly after installing my wired internet connection dead. i can still connect to my office network and access other pc using wired connection. but just can’t browse anywhere ! using chrome / firefox… it’s weird.
i can still browse when i disconect my wired lan, and connect to the office network via my laptop wifi. but everytime i connect the wired lan - BAM, cannot browse anywhere.

i triede uninstalling avast!free, but still I CANNOT BROWSE INTERNET WHEN USING WIRED LAN, i still can browse using wifi and unplug the wired lan cable, but then i cannot access may office server files.

i already tried :
installing and uninstalling avast again
using avast unistaller in save mode
installing and uninstalling my wired network adapter driver

arrgghhh… this is driving me nuts… help please… how do i enable browsing using wired connection agaiiinn ???

thanks in advance.

2

What Operating System ??? What AV did you use before installing Avast ???
How was it removed ??? Which version of Avast did you install ???

3

machine : asus x450jb. intel 4720hq. gtx 940m. 1tb hdd. 4gb ram. i just bought it 5 days ago.
operating system : windows 8.1 that came with the machine
av used before : none. this is the first av installed it this machine.
method of removal : using control panel add/remove program. and reinstall it and remove it again using avastclear.exe in safe mode.
version of avast used : the one on the front page that’s free : https://www.avast.com/download-thank-you.php?product=FAV-ONLINE&locale=en-ww

i already tried googling for similiar symptoms : https://www.google.com/search?q=avast+kill+internet&ie=utf-8&oe=utf-8
and tried all of the above method, and still no go. avast still blocks me from browsing usng a browser when connected with a wired connection.

i’m in the process of redownloading windows 8.1 using microsoft media creation tools, and reinstall my windows 8.1, cause i got the key in my machine.

4

Have you try Repair Avast:

  1. Control Panel → Add/Remove programs → Avast
  2. Click on ‘Repair’.
  3. Follow instructions.
  4. Reboot.
    Or pls download Avast! free from http://files.avast.com/iavs9x/avast_free_antivirus_setup.exe
5

Brand new computer comes with a pr-installed AV. Asus usually pr-installs McAfee.
Follow the instruction in my signature to Successfully install Avast.
Unless you totally remove what was pr-installed, you’ll have nothing but problems, as you’ve already found out.