Depending on whether you’re using SMB or NFS shares, it’s either this article:
Configuring fstab based Samba share mounts
Or this one:
Configuring fstab based NFS share mounts
Those articles should get you going on the fstab front. No matter, if the problem should be resolved by adjusting advanced settings or not, fstab is always recommend as it gives you better througput and higher stability.