I know that this is a common issue, but after doing the troubleshooting steps that i have found i am still having the issue. Some of my servers are listing as unknown and unclassified in OME even though the settings are the same as the servers that are correctly displayed. The SNMP settings are the same but when i run the trouble shooting tool i am not receiving OME data. 

A correct server:

and an incorrect one: 

even though the settings are the same on each server. Any help on this issue would be greatly appreciated. Thanks in advanced.  Oh and both of these servers are Server 2008 R2