Despite configuring SNMP settings on both the PRTG core server and client side, and allowing port 161 through the Windows Firewall, SNMP communication still fails. Should I allow additional ports for Windows Firewall compliance?


If you're working with SNMP, the firewall rules will be straightforward:

NameProtocolPortSourceDestinationAction
SNMPUDP161anyanyallow

The most common issue is actually the configuration and setup of the SNMP agent on Windows:


Disclaimer:
The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.