Hello

I made GRC ShieldsUp Test and port 139 is closed not stealth. ER605 HW v2.20 latest firmware 2.3.3.

Is it normal? firewall > attack defense "Block TCP Scan (Stealth FIN/Xmas/Null)" is enabled and "Block TCP Scan with RST" is disabled.

Everything else in FireWall section is default. No port forwarding.

Thank you for explanation.