I ended up installing CuteCom on my linux Desktop and followed the instruction. Configured the Duet IP to DHCP, which didn't worked from windows(I don't know why).
With linux, it worked like a charm.
Now I can connect to the DWC from the linux Desktop, windows laptop or via IPad Wifi.
Ok, I did some G32 (4 time), here are the consol result
I homed, then send a G32 from DWC.
(mean, deviation)
before (-0.737 , 0.437) after (-0.000 , 0.014)
(-0.001 , 0.019) after (0.000 , 0.015)
(-0.009 , 0.012) after ( -0.000 , 0.012)
I homed again, then send an other G32.
(-0.018 , 0.011) after (-0.000 , 0.009)
Then I send a G29 (61 points mesh)
min error -0.052
max error 0.043
mean -0.010
deviation 0.022
Also, in config-override:
M665 L(I set manually) R... H... B... X-0.077 Y0.451 Z0.000
M666 X0.355 Y0.115 Z-0.470 A0.00 B0.00