Hi Hayla,
Thanks for your fast reply.
Stupid me.
I was using Pingplotter with UDP Packet tries, instead of the default.
Had some good reason to do so for 1 occasion, but forgot to set it back.
This explains all.
Now the plot looks fine.
Sorry for the inconvenience!
Han


Last edited by hanh; 10/27/18 02:47 AM.