Network Drive Issues

You probably have a Realtek based WiFi dongle, so that would explain why the WiFi no longer works.

So the R7000 is acting as the NAS? It can only do SMB, it can’t do NFS if it’s like mine.

I’d suggest that you try adding the shares via fstab or better autofs.

Here’s a link about that. And it includes how to troubleshoot from the command line.