Since a few weeks, I've been experiencing problems with TeamViewer (it wasn't happening before): after connecting to the remote PC, the screen stops updating (it still responds to mouse input, but can't be seen). The app seems to freeze sometimes. It works for about 10 seconds, and then it freezes again. I have already updated the system to the latest version, but it has not helped. I am connected to the same network as the remote computer. Is this a known problem, or is there something that could be causing this?