Can you say what are requirements to connection and soft of the clioent. We tested on several pcs and when the button is clicked nothing happens really. No connection to the server, nothing. I mean it works from time to time. There's nothing suspicious in the logs. The softphone loads ok, but doesn't respond, even in the console. Is it plausible that the wi-fi router simply doesn't have some required functions or some ports are locked or anything?