The OFTC Network limits the number of connections coming from hosts to limit the resources that may be used by misconfigured software.
If you receive the message:
No more connections from this host allowed.
See https://www.oftc.net/LimitExceptions for more info. when you
are not allowed to connect to OFTC, you have hit one of our limits.
If this happens to you, please write to firstname.lastname@example.org; include the day and time (as well as timezone) you received this message. If you think you know why the connections are being rejected (such as a CGI::IRC gateway, behind a NAT firewall, etc.) please let us know.
If you know you are using a NAT firewall, please include the IP addresses of your NAT firewalls (some networks use more than a single publicly-routable IP address), how long you think it will be valid (e.g., a short-term conference vs a long-term business), as well as how many connections you believe would make a reasonable ceiling.
OFTC has no limitations on users connecting with two or three clients, however we do suggest ChanServ and NickServ as possible alternatives to running your own channel bots.