Those don't look like disconnections to me. Just heavy use and quite a few lost packets.
Edit: The spikes in your OP graph from top to bottom, through the green, are probably disconnections.
My broadband basic info/help site - www.robertos.me.uk.
Domains, site and mail hosting - Tsohost
Connection - Three 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up.
"Democracy means simply the bludgeoning of the people by the people for the people." Oscar Wilde
Edited by RobertoS (Thu 09-Apr-20 18:51:18)