Spark receives a message about client being invalid

Hi there.

We are running Spark inside a closed network.

Since 3 or 4 days users are getting the following massage when opening Spark:

“You are using an invalid client, and therefore will be disconnected. Please ask your system administrator for client choises.”

Any advice how to solve this problem?

Thanks a lot.

Message was edited by: wroot


Next time think of a more informative title. I have edited your post

What server are you using? Is it Openfire? Then maybe there is a Client Control plugin installed on the server and it is for some reason not allowing Spark client. Anyway, this question is mostly for your server’s administrator.