If you could post your code, that would be great since the samples you mention do not show such latency. As @Aaron mentions, 5 min latency is so far off the norm that it’s unlikely to be basic functionality of the broker with clients.
If you could post your code, that would be great since the samples you mention do not show such latency. As @Aaron mentions, 5 min latency is so far off the norm that it’s unlikely to be basic functionality of the broker with clients.