I am having problems disconnecting while on my personal story, it isn’t usually a problem but repeating “The Battle of Claw Island” and “A Light in the Darkness” combined over 20 times was a really frustrating experience. Today I repeated a few ones too and the idea of a checkpoint system, save feature or something similar for the longer quests would be rather nice.
Edit: Making a clean install on 301.42 Nvidia Graphics Driver seems to have fixed my issue with disconnecting and getting error code 7. Hope that helps anyone experiencing the same problem.