[Samba] slow speeds with Windows 10

[Xen]

Xen schreef op 07-08-2016 21:43:

> The transfer speed is only 1MB/s but the NAS uses 100% CPU. Normally
> the NAS can handle 60MB/s download (from the NAS).

It took 100% even when the speed was below 100K/bs. It took at least 45 
minutes for the transfer to (almost) complete. Of a 2GB file. I 
restarted the transfer using ftp to the same host over the same (bad) 
wifi link and the download completed in about 12 minute this time.

Not a clue why it is taking so long and asking so much CPU....