Loss of networking (dns)
My old workstation stopped functioning (bios)
as this is my primary dev box found a replacement MB and recovered the data
as the data was set up with a vendor (intel) raid
networking was recovered up until the last update, now networking no longer functions ? I can get dns (console) to function but browser and update of some utilities fail to resolve correctly. nothing out of the norm for networking.
You have not provided any version of your software. Not resolvectl command output or at least /etc/resolv.conf contents.
If you are not sure, try curl command from command line. If that works but browser does not, I guess you have to search in browser settings. Try creating new profile of firefox or move its settings in home to backup.
If you want a help, you need to provide more technical details of your machine.