I hope they hurry up! I'm stuck using a slow dial-up modem instead of my fast mobile connection (which means that most of the time I can't connect)!

You can go on the Avast Icon in the System-Tray, right mous buttom and Options (Programm Einstellungen - in german).
There you can set a exclusion for the files you need for the connection… After this, Avast don’t scan the files in the exclusion list…

Greets