Hello list, So I'm having a strange issue with Centos 7 mounting NFS V3. It starts with autofs. For example, my auto.share file: apps -nfsvers=3 some-server:/mnt/xfs1/& This will mount, but the first mount takes ~30 sec. After this, eventually the mount becomes stale but it still shows as connected in 'mount'. At this point, I can no longer mount NFS shares. Manual mounting example shown below. Any feedback would be appreciated - thank you! /etc/centos-release :::::::::::::: CentOS Linux release 7.1.1503 (Core) mount -t nfs -o vers=3 mdstor:/mnt/xfs1/apps tmpx -v mount.nfs: timeout set for Tue Feb 16 08:33:31 2016 mount.nfs: trying text-based options 'vers=3,addr=143.219.41.19' mount.nfs: prog 100003, trying vers=3, prot=6 mount.nfs: trying 143.219.41.19 prog 100003 vers 3 prot TCP port 2049 mount.nfs: prog 100005, trying vers=3, prot=17 mount.nfs: trying 143.219.41.19 prog 100005 vers 3 prot UDP port 892 mount.nfs: mount(2): Input/output error mount.nfs: mount system call failed Thanks, William