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hjlbx
HJLBX,
You have tested all config - by this you mean all config with their defaults or all config with your customization?
If you haven't yet then once try the default internet security config with its default & no single modification to the default settings.
If you do try then uninstall CIS completely & do clean CIS install.
I have tried all built-in Comodo configurations using default settings = I didn't change a thing...
Also, same behavior with custom configuration...
I've uninstalled and clean-installed since version 7 so many times I've lost count; doing so never fixes problems permanently in my experience.