We have a problem when internet connection crash.
Client A send message to client B. All works fine. Now client B loss connection, the server have client B online but it’s offline. Client A send a message to client B. The server receives the message and send to client B but it’s offline. The message will be lost.
I see XEP—0184 and XEP-0198 but I can’t implement.
Have anybody solved this problem?