Comments

• Do you have the Intrusion Prevention System (IPS) turned on and have it set to block low priority attacks? If so try de-selecting the prevent all option for low priority attacks. Then retest to see if PINGs work. I would also create a custom rule to allow ICMP from your LAN to backup zone and set the priority manually to…

  in How do I use output of packet monitor capture to identify which rule or policy blocking the PING Comment by Nathan_M November 7
• Does the new access rule have a higher priority than other WAN-to-WAN access rules? Are there any conflicting rules with a higher priority than your new rule?

  in TZ-500 - Loads of Probably and Possible Port Scans Comment by Nathan_M November 7