network problem after creator fall update

[Deusest]

My pc is going through a weird problem after the update. I have a personal hotspot device that I connect to to PC to access internet. I checked the network adapter settings and IPV4 settings are checked and I clicked on configure and the on advanced and it seems my pc is unable to detectnetwork address. Trouble shoot says “local area connection doesn’t have valid ip confirguration” Before update 1709 everything used to work fine but now I can only browse ipv6 websites. IPv4 shows no internet access. Troubleshoot says my pc is failing to obtain ip address. I’ve tried netsh commands and releasing and renewing ip. Even checked if essential services were running in services. IPv4 option is checked in properties of internet connection. Did three clean installation but it didn’t help. Contacted my isp but it didn’t help. I can browse IPv4 websites on my iPad and phone and laptop.