BBB requires access to the network or Internet on your device that is as unhindered as possible. If this is not the case due to local network peculiarities or firewalls, it may be that a BBB meeting room can be entered, but video or sound connections are not established correctly in it. BBB often displays error messages with error codes in these cases. In most cases, the local search for and elimination of causes is complex and unfortunately cannot be comprehensively provided by the support team.