Connect on startup
Makes mIRC connect to the default IRC server automatically when it is run.
Reconnect on disconnection
Makes mIRC reconnect automatically to a server if you were disconnected and you did not type /quit.
Show connect dialog on startup
Pops up the connect dialog when you run mIRC.
Move to top on connect
Moves a server to the top of the servers list when you connect to it.
Check connection time out
Pings the server every so often to check that the connection is okay.
If enabled, nickname changes while online will not affect the nicknames you have specified in the connect dialog.
If you turn on invisible mode, people will not be able to see you on IRC unless they already know your nickname, or if you join a channel or talk to them privately.
The default server port that will be used when connecting if one was not specified for that server.
This option allows you to specify a set of commands that you want mIRC to perform when it connects to a specific IRC network. You can specify a set of commands to be performed for All Networks, for a specific network, and for any Other networks that are not specifically assigned their own commands. To understand how commands work, see the Aliases help section.
This option allows you to set the number of times a connection attempt is retried when connecting to a server.
mIRC supports secure server connections with SSL. See here for more information.
These options are for advanced users and should normally not be changed.
The Port range option allows you to specify the range of ports that mIRC will use with server and/or DCC connections. This can be useful if you need to open up a specific range of ports on your firewall or router for incoming and outgoing connections.
The Randomize ports option makes mIRC use non-consecutive ports when creating listening sockets.
The UPnP support option makes mIRC use the UPnP feature of your router to open ports for incoming connections when needed. This greatly simplifies use of the identd server, file transfers and a number of other features. In order for mIRC to use UPnP, you will need to enable UPnP support in Windows and in your router.
The Bind to Adapter or IP address option makes mIRC bind all sockets to a specific adapter or local IP address, in case you want to use a different outgoing network connection. If you specify an IPv4 or IPv6 adapter/address, DNS resolution and all connections will be made based on the adapter/address type. If you explicitly specify an IP address for a connection, such as in a /server or DCC connection, it overrides this setting. This option affects all features in mIRC, including commands such as /server and /dns.
The Enable IPv6 support option option allows mIRC to connect to IPv6 addresses. When you enable this option, mIRC will retrieve DNS results for both IPv4 and IPv6 and will prioritize IPv6 when connecting to servers. If no IPv6 addresses are available, IPv4 addresses are used. This option affects all features in mIRC, including commands such as /server and /dns.