I only had it once. I disconnected and relogged and it has not reoccured.
The only problem I have had with CA was on the yearly renewal where I could not remove all the previous year's programme so my computer kept defaulting to that and telling me it was out of date. Eventually the only way out was to refomat my C drive to clear it and reinstalled windows etc so I could load the current subscription. Apart from that I've been very satisfied with them.