This version of mIRC is primarily a security release. mIRC users are advised to upgrade due to a security issue that may allow someone to trigger a remote code execution vulnerability in some situations. This issue affects all versions of mIRC. This update also includes changes and fixes to a number...

From Khaled: Dear mIRC User, mIRC v7.54 has been released today. This is a small update that addresses a number of issues reported by users since the last release. It includes improvements, changes and fixes to a number of features, including: Fixed API call that prevented mIRC from running on Windo...

From Khaled: Khaled: mIRC 7.53 released Dear mIRC User, mIRC v7.53 has been released today. This release includes improvements, changes and fixes to a number of features, including: Added support for voice selection to speech options dialog. Added support for CPRIVMSG and CNOTICE if listed in numeri...

Addendum: ssl.efnet.org

You will have to contact BitchX direct for instructons on how to use their product and other support. I am unable to locate a current list of SSL servers. You will have to check the MOTDs.

If your failed joining attempt was accidental, I don't see the problem.

As you can see from the error message, it tells you exactly what to do.

It works without the port designation. Try that.

Nothing we can do about it.

Khaled: mIRC 7.52 released Dear mIRC User, mIRC v7.52 has been released today. This release includes improvements, changes and fixes to a number of features, including: Added support for IRCv3 STS secure connection feature. Fixed SSL connect behaviour that prevented a retry connect attempt for non-c...

Khaled: mIRC 7.51 released Dear mIRC User, mIRC v7.51 has been released today. This is a small update that addresses a number of issues reported by users since the last release. It includes improvements, changes and fixes to a number of features, including: Fixed server passwords not being migrated ...

Unable to determine why you were banned. That channel's ops may be able to assist you.

Dear mIRC User, mIRC v7.49 has been released today. This is a small update that addresses a number of issues reported by users since the last release. It includes improvements, changes and fixes to a number of features, including: Changed CAP invite-notify so that invite notifications are now displa...

From Khaled: Dear mIRC User, mIRC v7.48 has been released today. This is a small update that addresses a number of issues reported by users since the last release. It includes improvements, changes and fixes to a number of features, including: Added SASL/NickServ support as a per server setting. Add...

Three things:
1) This is the wrong forum for that question.
2) You failed to indicate which channel or even which network.
3) Only a channel op can invite people to a channel.