Hello! I'm having this problem when trying to connect with Spark to the openfire server. I have the server in a Windows 7 machine and Spark installed in that machine, another one with W7, another one with WXP and another one with W10.
The first time, I installed openfire in the XP machine, but as I couldn't connect from W10, I moved openfire (by uninstalling it) to a Windows 7 machine. Now, I cannot login from any machine, as it says: "unable to connect to server: invalid name or unavailable server." I don't know what to do anymore: i've checked the firewall (I made sure to have exceptions rules configured), I've made a ping to the server pc and got it right, and yet, spark won't connect.
I'm using the latest version of both softwares.
Any help?
Thanks a lot!