SNMP Issues

I am having issues with SNMP from the Network Sonar Discovery Wizard.

I am using SNMP v2c with the community string of public on my Cisco ASA Firewall which is also our main, core, router.

SNMP errors out when I put in the ASA's IP address and says - "Error: Could not determine community string." - please see attached file.

I don't know why this is not working since I have triple checked everything.

Any ideas...?

Thanks,

Eric...