With a chat activity on Moodle 2.5, all users (10 in this case) got suddenly a session freeze at the same time .. no way to send text anymore. A reconnect not possible either, during some minutes. The VPS Cloud server was not loaded (30% of RAM and CPU). No special system or cron jobs working, nothing in the logs. Chat setup was the default one (ie Ajax).
1. Anyone encountered this problem ? If yes how did you solve it ?
2. For more than 10 chat users, let's say 30 for instance, which setup do you recommend: Ajax still ok ? Normal ? Daemon ?
Thanks for you help,