Is there anyone who can try to reproduce issue with reconnection on Paho C 1.3.0? In case of a permanent connection, once it is lost, next successful connect will be postponed depending on number of signals sent to connect semaphore. In my case it was more then 50 connect retries. Depending on period, loss takes a lot of time (e.g. 50 x 30s = 25min).
The same can't be reproduced with Paho 1.2.0.
If there something more to clarify, just ask.