Could anyone help me understand why my PC/Modem seems to be dropping packets every 30 sec. If I re-boot the 30 sec dropped packets go away, but return some time later, not directly after the restart.

I have being trying to understand why members of my household keep being disconnected from a game server. I think this has only started happening recently as I have been monitoring the game server connection on and off for a couple of months and this is the first time I have noticed this.

Also if the ping at the final hop is ok, is it safe to discount the poor ping at hop 17? This is only on my PC.

This is an image from a couple of months ago, this is more typical of the connection.