I'm trying to monitor an HP ProCurve 1810G - 24 GE switch and a MikroTik RB750GL switch using SNMPBooster, but I get "SNMP Request error: Request timed out or bad community" error in both cases.

I don't see errors in var/*.log files.
I monitored traffic with wireshark and I see "getBulkRequest" and corresponding "get-response" packets.

Could you help me?

OS: Ubuntu 12.04 on an VmWare ESX 4.1 virtual machine.
Shinken 1.2.2
genDevConfig 3.0.4