I am adding a lot of Cisco Voice Gateways to our OP-Manager v7 latest build. By default after adding the router as device all interfaces are managed in automatic. Being a voice router, there are hundreads of virtual interfaces added in automatic which should not be monitored. If i select all not wanted ones and press REMOVE i have a error that the SNMP agent is not available. I seen that removing not more than 35 it is working fine. Tried also with REDICOVERY but that is when you want to add something not to remove.