Had a user bring us a Windows 10 HOME computer that wasn’t able to get on the internet using Wifi or Ethernet. After toying around with it for some time here is what we notice.
- Would receive and IP address from DHCP server, but no Internet access.
- Could add a new port, usb ethernet, gets IP but still no Internet.
- Went through Google search finds to reset network, still nothing.
- Removed all the ports, drivers etc.. Still, nada
We found it odd that the computer would get an IP number from server, but then not do anything else with network. We found the user had install AVG anti-virus, took some work to remove without internet, but finally won over. However even after repeating all the steps above, no Internet. Checked resources and system apps, couldn’t see anything that stood out..
We figured it was a typical virus that ransomware the system, but none of the normal flags popped up..
So we finally just reinstalled the OS, oh we did try recovery, that failed. After the reinstall of course everything worked fine. A bit more digging and we found out this ‘issue’ is called Gateway or DNS blocking. Nasty beast. Anyclues how to get around it without rebuilding the whole system?