I have a problem where all of our Windows workstations are being detect as "Some Device". Is there something I have overlooked in the scan configurations or is it something on the Windows firewall that is preventing The Dude from detecting that it is a Windows computer?

Things to check:

1) The Dude
Go to Devices -> Types
Open Settings of Windows Computer
Choose Identification tab

Should see that windows is in the required list (as shown in picture below)


2) Windows PC
You may need to enable SNMP on the servers involved.

If they are Windows servers, try:
http://www.windowsreference.com/network ... 000xp2003/
or
http://support.microsoft.com/kb/324263

I checked part one of you reply and it looks like it's configured properly. As far as SNMP, I don't think that is the problem. The IP addess and the computer name are reporting back properly, they just report back as Some Device instead of a Windows computer.