Ubuntu plotter - Windows share

[Gazzaspins]

I have /mnt/plots bound to //windowsmachine/sharename/

my tmp is /mnt/hdd/00
my dst is set to /mnt/plots

I can write files to /mnt/plots without error or sudo, i can cp or rsync the plots manually to this share just fine however plotman logs show this:

Could not copy "/mnt/hdd/00/plot-k32-.plot.2.tmp" to "/mnt/plots/plot-k32-2.plot.2.tmp". Error Resource temporarily unavailable. Retrying in five minutes.

it creates a file in the share directory of 0kb, I left it for 6 hours hoping it was just a slow transfer but the files were still 0kb

i looked into using the archive function but it looks like it needs rsync at both ends to work correctly?

all 3 plotting machines get this error.

what am i doing wrong?