Connected to network but no internet

[LemonSpice]

Hi,

I was running fine for past couple of days then suddenly I started to have intermittent network failures where I would lose internet access from my computer for a couple of seconds. This eventually progressed to my windows 10 computer showing no internet access no matter what I tried. I tried ethernet same issue wifi same issue. I eventually reinstalled windows. It worked for a bit then started again. I again reinstalled windows but this time did a clean instal. Now it will not work at all. All the other devices on my network have internet access and from my pc I can view all the other network attached storage devices. If anyone can help that would be great I have tried changing ipv settings reinstallng uninstalling drivers and most of the basic stuff found online. Simultaneously my computer decided it would not allow me to boot properly through a live USB so I cant even try to see if its a hardware issue via my Ubuntu Live disks. Does this sound like a motherboard issue as we have had intermittent blackouts recently and I am worried a surge got it. Should I update Bios?