Frequent socket disconnetion with ping timeout in client side with stable internet connection

[itzmanish]

Hi, So I am facing some issues with socket io (v4.4.1) and socket.io-client(v4.2.0). That is some clients get disconnected with the reason ping timeout on the client but the server gets the reason transport close. Now here I can verify that server didn't have any high load and the client has a pretty good and stable internet connection.

There were other clients connected to the same socket server and they didn't face any disconnection so I can say that server was sending ping packets properly to all the clients.

Any help on getting the root cause of this issue will be very helpful and highly appreciated.

Thank you.

[darrachequesne]

Hi!

This might happen if the WebSocket connection is severed but not completely closed. The server sends a ping packet, which fails (hence the "transport close" disconnection), and the client eventually gets a timeout (without knowing the WebSocket connection is broken).

Are you able to reproduce the issue? Is it linked to a given browser?

[itzmanish]

I am not able to reproduce transport close error but If I manually produce an error on ws.write() I get transport error.