test with the latest iemnet/tcpserver:

remarkable better results.

no big bursts anymore.

sending every 20 msec,

0-1 % of the messages comes more then 30 msec after the one before.

80-90%  follow  in 16-24 msec.

99%  11-29 msec

which means (i think) that when there's a latency it gets immediately compensated.

of course these measurements are done in a kind of lab situation.

but anyway, it seems to present a good stepping stone for the projects i want to use it for.

thanks again everyone for the support.

rolf