This is known issue with switch HP Procurve. Feature called "auto DoS" is causing network problems and needs to be disabled.
Article ID: 1003
Last updated: 06 Apr, 2020
Revision: 2
DSS V6 [EOL] -> DSS V6 [EOL] Information -> General info -> [DSS V6] Cannot mount any NFS share /dss-v6-cannot-mount-any-nfs-share_1003.html