OK, I've meant short disconnection.
Yes, Martin, that could be the case, I am not sure.
As two (or more) of your programs disconnect at the same time. I still do not see what makes you think that it is fault of WinSCP.
Because so far and as far as I can see it now it seems to have happened only, when WinSCP was running. But I will go on watching it, I mean to have never noticed it before.
Thanks for your help, nice greetings, Dirk