[CentOS] CentOS 7 autofs flakyness

I have a user who couldn't get in via WinSCP to a server. Got him to log in via putty, and that was fine. But he still couldn't get in the other way. At my manager's suggestion, I restarted autofs... and everything worked.

Note that his home director5y was already automounted via NFS, after he logged in via putty. We've seen other, similar oddities with NFS. Is anyone else seeing this, or have a clue?

Btw, there were no errors showing in /var/log/messages, journal, I saw this in dmesg: task mount.nfs:83892 blocked for more than 120 seconds, but that was from four days ago, and my user just reported the problem yesterday, though he hadn't tried to use WinSCP in about a month.

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