Devcie expert 4.0 doesn't work at all.
After I finish the installation, access the site from another system to
https://deviceexpert:6060/, and login to the admin account, everything is ok up to this point. When I try to either discover or add device, it just couldn'd find anything neither cisco 2950, foundry FastIron.. I don't think there's any problem with my device since they are all working from other snmp management software. Any clue to resolve the problem so I can move forward?