* Check whether mode `+j` is set. This is a join throttle, which prevents lots of users from joining in a short period of time. If this is the case, it might be worth trying again after a minute or two, to see whether the join throttle is the reason.
* If you are logged in to services, check the channel ban list -- you can do this using `/mode #channel b`.
* Check whether mode `+j` is set. This is a join throttle, which prevents lots of users from joining in a short period of time. If this is the case, it might be worth trying again after a minute or two, to see whether the join throttle is the reason.
* If you are logged in to services, check the channel ban list -- you can do this using `/mode #channel b`.