Thanks for the feedback.
I left clean install copies of mIRC 7.77 running on Windows 10 and 11, connected to ten servers via SSL and joined to around thirty channels, over night and, so far, they are still running without any issues.
To rule out something related to a recent Windows update or system change, if you run mIRC 7.76, does it show the issue?
If it doesn't, the next step would be to try out the betas between 7.76 and 7.77 to narrow the down where the issue started. I will send you a private message with a link to a beta for testing.
One other question: are you running anti-virus/security software? In the past, there have been reports where they have caused issues like this.
