I have my win10 firewall enabled.

I get hassles, can't see my IP cameras, want to check it's not the firewall, I disable it.

Is that it?

Or may there be other firewalls or similar that I need to look at?

For instance I run Avira. Today I can find nothing about firewalls in it, yesterday I distinctly remember switching of a firewall in an Avira page.

And I run IIS - I can't see that's got anything to do with it but could it?

And the router - all it has is port forwarding, nothing else?

All sounds like a bunch of stupid questions and okay, maybe they are, but I'm just trying to nail it down - what firewall type things might we have to look at when checking there's an open path to our machine?

oh, yes, ccleaner is in there too...