Good news, I managed to have the problem fixed upgrading to W10 ! Well, had to buy a new laptop too ! But it works … however I’ll be happy to tweak the camera compression at some point … looking forward to having a solution.
By the way, I have also tested my connection speed using your tool, I got around 70Mbps in both download / upload. Not so bad for a 100MBps theoretical … with a Subconn and several connectors along the line !