Comment 2 for bug 1547053

I have a very critical bug that might be related.
When my phone loses connection for any reason (e.g. weak wifi or mobile signal) telegram disconnects and remains useless even if connection is regained. That is it stops sending and receiving messages even if sometimes notifications arrive. The only workaround is to switch on and off again flight mode, close telegram and reopen it only after the connection is fully restored.
When on a mobile connection there's a sign that connection might ave been compromised when the 'H' symbol of 3G (or 'E' for 2G) is replaced by the 'empty' symbol of wifi connection (even if wifi is turned off). This 9 out of 10 times means that if I open telegram I obtain a blank screen if it was closed, or an useless app (can't send or receive messages) if it was open (background or foreground).
This is a huge problem that seriously compromises usability, especially in zones with poor mobile signal coverage.