Last night, we had to rebuild the server (Windows 2008 R2) that runs Openfire. Now everything looks good at the server – locally installed Spark client connects to Openfire and sees user database through LDAP connection. But at workstations, I get the message “Can’t connect to server: invalid name or server not reachable.” Pinging the server by name and by IP is successful. Tried stopping firewall on workstation and on server and reinstalling client software – no love. What would you suggest I try next?