I recently setup a new fast machine to be a file server for windows and Linux clients. It is running NFS for the Linux clients. Previously we were doing this for a couple of years on an older server with 2k12R2. Never had any issues with the speed of the NFS shares. Since switching to 2016, with all the software setup as identical as I can make it, but with faster hardware (all SSDs instead of hard drives and faster CPU), the Linux clients take 30 seconds to 1 minute to do an initial LS of files in a folder. Also CD to another directory will sometimes take the same amount of time. Then everything will be fine for a while, but sooner or a later the delay comes back. I've been doing research for days on this issue and so far cannot find a reason why this is happening. I did notice today a warning in my event log on the new server in ServicesForNFS-Server: Operational which I don't see ever happened in the old server's event log. Could this possibly be related?
There is an attemp (sic) to access file with invalid NFS handle signature: Status 0xC0532711