Hi, Rita,

From routers I know nothing, but you can check your firewall in System Prefs > Security & Privacy > Firewall.

I've run into the "not secure" thing too, but as long as I "think" I know what I'm doing I just click through.

The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire