GLPI inventory system + FusionInventory?

Question

Computer networks

Worth:
1. GLPI -
0.84.3 2. FusionInventiry - 0.84+1.2
3. FusionInventory Agent 2.3.3
The server is on CentOS. Agents stand on Windows 7.
Agents give information for inventory everything works well.
The problem is to configure SNMP polling and draw a network map.
Completed:
1. Checking agents by type agent_ip:62354 is running status - waiting.
2. Installed and configured the SNMP service on the agents.
3. We try to perform the "Network discovery" task. We set the network, we set the agents manually. We do. The task freezes at 50% completion and the "started" status does not change.I waited for 3-4 days, the result is the same. I tried to set a network of 3 IP addresses, the same thing. If you set a network, but do not select agents or select "automatic agent management", an error occurs - "No devices to inventory".
4. Trying to complete the "Network Inventory" task. The error falls out - "Unable to find agent to run this job". Tried to change any parameters for the task nothing helps.
Please help me figure it out.