Problem adding network interface to VM for Big-IP 11.3

I'm trying to add some interfaces to our Big-IP VM and it isn't going well. When I add the interfaces, we already have 4 defined, we lose access to the configuration GUI and SSH access to the VM. The only way to access the Big-IP is through the console from the Virtual Center GUI. This is a documented problem with running Big-IP under VMware (CR 137616) but the workaround doesn't work for us. It says to run the command "rm /var/db/mcpd*", which we can't from the TMSH shell. Any ideas how to get this thing working would be greatly appreciated.