Anything more i can do to be more safer?

Wi-fi security:

• WPS disabled


• WPA2-PSK + AES + 54.000 SECONDS(15h) Group Key Update Period


• UpnP disabled


• Spi firewall enable


• All ALG enable


• Ignore ping packet from WAN and Lan to router


• Default password changed -Firmware up to date -Remote management disabled

Computer on networks:

• 2 WIN7 Machines


• All have all recents updates


• All use google chrome with adblock with full filters option + ghostery blocking everything + https everywhere + privacy badger


• None have java,adobe, one dont have windows office at all and one have


• All have Microsoft Security Essentials, Comodo Firewall, Win Patrol and malwarebytes anti-exploit up to date


• All ports set to stealth


• All scans did with internet disabled show the pcs is clean

Mobiles on networks:

Iphones - not much i know i can do for increase security with iphones, any tip i would appreciate Androids- All runs Comodo Firewall antivirus on them, no record of problems so far, dont know more i can do for them

Other than that i have a few chromecasts and a wifi printer but it just get on when we needed I tried to close as many doors i know , but anything more i can do for added security would be good to know, also i want to know why comodo keeps blocking packets that seems to come from my PCS on lan, like my pc sends a packet for the other pc, and comodo blocks it for some reason, but why my pcs is sending packets anyway? Should i worry? Sorry for any mistake, english is not my first language, i hope this can show people doors that they haven't close, i want to be safer as possible...i'm going to set up a vpn soo too, i just need to convince my family that it worth it! I want the whole network safer and only possible to be hacked by pro hackers and govs, but i will make the harder i can