I've just built a Windows 2012 server. After installing the SNMP service I saw that the windows firewall already had two rules that allowed SNMP traffic enabled. However, they don't appear to work. I am unable to do an SNMP query on the server.
Only after I added a custom rule that opened port 161 for UDP was I able to SNMP query the windows 2012 server.
Question: Is there a known issue where the Windows default SNMP firewall rules don't work?