Thank you for your comment. In my particular case, I simply prefer to "go on" without retrying if there is a connection problem. It is just the app automatically check if an update is available. If this check cannot be done, it does not matter. It will retry at a later stage (typically when the app is started again). What I do not want it is freezing the app while trying and trying again (as I do not use - unfortunately - any non-blocking mechanisms).