NAV 4.8.6

We have a couple of switches, Cisco Catalyst 4510R+E where we are not able to change Vlan via PortAdmin:

Error setting vlan: SNMP Error: wrongType (The set datatype does not match the data type the agent expects)

We have several other switches of the same type where there are no errors.

The config on the switches is as good as identical.

Can anyone point us in the right direction for debugging this?

--Ingeborg