Timeout settings for "Server connection lost"

Hello everybody,

does someone know how to configure the timeout for the message “Server connection lost, trying to reconnect.”
The application calls a other remote system via an web service, the response of the remote system can take a while.

Thank you.

Hello Everyone,

I am using vaadin 8 and getting “Server connection lost, trying to reconnect.” after some specific time period. and then user are not able to re-login and getting “webpage not available” error.

We have set session timeout to -1 “unlimited time period”.

can anyone please help in this case.