No network connectivity

sml156,

Thanks for your very detailed post, #3 above!

I tried all your suggestion. I tried disabling my ethernet and using my computer's WiFi to connect. I manually set the IP address, as you suggested, except that my router is 192.168.1.1. Wi-Fi status has the SSID showing the name of my router, so I believe that the link is OK. IPv4 and 6 show no network access. I can't ping the router and when I try to ping myself (192.168.1.99) I also get a general failure.

Thanks in advance for any help or suggestions.

Quick update, last thing i did last night was run a sfc /scannow, it picked up multiple corrupt files but said they had been repaired.

Previous to my system reinstall i was running this command and getting an unrepairable corrupt file windows\syswow64\opencl.dll, which appeared to be an unrelated issue to my network problem.

Anyway, the network issue still remained, even after a reboot, so I shut down the system and planned to do another clean install today. I figured that since i did the 'refresh my system' version of a clean install it was using files present on the HDD to do this and that is how there was still corruption, so I figured i would do another clean install using a DVD from pre-boot envrironment.

Booted up the system this morning, and the issue is gone....

I'm still going to do the DVD-based clean install later today.

What an infuriating problem!