NFS broken after firmware 4.00?

Thanks folks for sharing your solutions!
I’ve tried both 16384 and 8192 and only latest worked for me as with 16384 system still froze after a moment of reading file from mycloud, writing works just fine but it was working without issues before.

so in the end here is what I’m using right now:

sudo mount -o soft,intr,rsize=8192,wsize=8192 xxx.xxx.xxx.xxx:/nfs/Public $HOME/nfs/