After spending quite some time troubleshooting years ago, I chopped up the odd NFS disconnection once every month or two to random network errors. Autofs looks like it’ll work but my bandaid solution was just to add a mount command to the NFS share in cron every 5 minutes. Took me 15 seconds and haven’t had to look at it since.
To the average tune of about 15-65 cents per month if running 24/7