Thanks, found it in latest v6.7!
20–30 connections open in WinSCP and PuTTY.
Internet drops
Connections start disconnecting
Internet back
I have to click each tab on WinSCP and press reconnect.
(same on putty but that's another story)
total 60 actions, about 120 mouse clicks or more
Improve WinSCP: menu item Reconnect all disconnected
Or even: Reconnect all (some may be stalled in thinking they are connected but they are not) that will force disconnect reconnect the connected ones also