Originally Posted By: Khaled
I'll try it the next time there's a Windows update available

I've come across another way to reproduce this more easily.

- Lock the computer (Windows key + L) while mIRC is the active app
- Reset your connection so mIRC reconnects
- Unlock the computer

Note: You'll have to actually reset your internet connection to trigger the reconnect. A test with a timed /server didn't produce the issue here.