I've just started testing OpenFire. I've got it installed and configured (maybe not the best configuration, but it starts) on Debian Wheezy. Seems OK. I have 3 users (including Admin). The users are on Windows and I'm using Pidgin as the IM client (spark can't use Java 8). Both users can connect, and the web control panel shows both users connected, but neither can see the other in the buddy list. Attempting to manually add as a buddy silently fails. IM'ing each other also fails (silently).
Any suggestions as to how to troubleshoot this?