Reconnect after receive Error 4201

[hacka007]

In my project I receive the following Error and my app reconnect to the pusher service. The Error fires al lot of times while running the app over a day.
pysher.connection:Connection: Received error 4201
Connection: Received error 4201
websocket:close status: 4201
close status: 4201 `

I use Python 3.7.11 and pysher 1.0.4 with websocket-client 0.57.0.

What can I do to prevent my app from this error and the reconnect?

[benjamin-tang-pusher]

Errors 4200-4299 means Pong reply not received: ping was sent to the client by our cluster, but no reply was received. I'm suspecting this library is getting a bit old unfortunately, and isn't complying with our latest protocol.

[sebaherrera07]

We are seeing the same lately in our app too. Lots of 4201 events, but still haven't figured out what's the reason behind it.