I'm really not sure if this is a 2008 issue or not because I have two other 2008 systems that work just fine. We have a fairly straight forward deployment using SNMP as a service, this is just configured with a group username and IP in the accept packets from. All other servers work except this one. No windows firewall, and all their other servers behind their hardware firewall work fine. This host shows up in Nagios for Ping and TS of course but it appears none of the UDP traffic on 161 is getting in our out. Anyone seen behavior like this before?