i had to switch to my n8 for a day and installed whatsapp on it. after going back to the n9 whazapp constantly tried to connect ("connecting..." in top area of ui). i deleted the app & my account and reinstalled it. now when i try to register i get "server said: success-attached::: 878" and the everything failed try me button gives me a "server said: unkown reason" notification.

what can i do?