The network-manager package (1.1.93-0ubuntu3) in xenial disables NetworkManager-wait-online.service on installation in the postinst script which causes issues mounting remote filesystems such as NFS on boot.
The issue was fixed in #1430280 for vivid and #1515446 for wily/xenial but it seems that the fix was reverted in xenial in version 1.1.93-0ubuntu1 of the package.
I've tried the patch from #1515446 with the newer network-manager version and that seems to fix the issue again.
The network-manager package (1.1.93-0ubuntu3) in xenial disables NetworkManager- wait-online. service on installation in the postinst script which causes issues mounting remote filesystems such as NFS on boot.
The issue was fixed in #1430280 for vivid and #1515446 for wily/xenial but it seems that the fix was reverted in xenial in version 1.1.93-0ubuntu1 of the package.
I've tried the patch from #1515446 with the newer network-manager version and that seems to fix the issue again.