Joined Players Crash, Invisble, Cannot see enemy, etc

Have not played multiplayer since well before the Companion and hot fix updates. Today had with only 1 added player, they crashed 6 times with in a few minutes, they could not see my control points, they could not see enemy control points, the joined player icon on the map would jump around, they would join the game and be invisible (I would see a floating gun sometimes), I could see nothing but them shooting in some instances, the could not see or hit enemies. It was a jumble of issues we had. Managed with rebooting modems, verify files (all were good), and few game reboots were able to play for a bit, but still had some of these issues with viewing the map and moving around to control points.

A post was merged into an existing topic: Multiplayer Issues Collection Thread