No connection to WG household_object_database
I'm following the guide on the wiki. I have installed the database on my desktop, which works fine. However, on the robot I would like to access the database remotely. I launch with
$ roslaunch household_objects_database objects_database_remote_client.launch
which seems fine. However, when calling one of the remapped services, I get return code 3. I've tried both ping grasp.willowgarage.com and telnet grasp.willowgarage.com 15432 which also work fine, so I guess it's not a network problem.
The same error occurs on both the robot and my desktop.
The issue is very similar (i.e. identical) to this one.
UPDATE: I tried it from my home network as well, and there is still no connection, and still replies with error code 3. I'm surprised no one knows how to fix this.