Hi,
Yes - tested as requested and can confirm that both browsers are disconnected at the same time and both reconnect immediately.
The application is on a hosted server external to the 2 browsers (ie, really on the internet), but the 2 computers running the test are i the same office on the same network.
Both computers report the disconnect at exactly the same moment, but they initially connect to the lobby at different times - it appears to be caused at the server end.
Please advise.