Description of problem: I cannot initiate Bonjour chats over Pidgin. Messages can only be sent if both persons have double-clicked each other in the contact list and thus have a conversation window open for each other. Pidgin seems to be the only client having this problem, others (mainly iChat) don't seem to present this. Version-Release number of selected component (if applicable): Pidgin 2.4.3-1.fc9 How reproducible: Always Steps to Reproduce: 1. Connect two computers via LAN 2. Create a "Bonjour" account on both in Pidgin (Manage accounts -> Add -> Protocol "Bonjour") 3. The two computers should have found each other automatically already. 4. Select computer B on computer A and open a chat window. 5. Type a message and send it. Actual results: The message won't be transmitted. Expected results: The message should be transmitted. Additional info: Opening a chat window with computer A on computer B as well will enable Pidgin to send messages via Bonjour, however closing one of them will make the messages fail again.
Forgot to mention: This issue still happens in Pidgin 2.5.1 which I was able to test on a Windows XP machine.
This is almost certainly caused by a firewall preventing the connection to the remote client in order to start a conversation. The debug log (Help->Debug Window) output will confirm this.
Just for future reference, opening 5298/tcp fixes this problem.