VMware tools timeout issue

I'm having a problem with VMware tools not starting in a timely fashion when testing SRM.

I've read the KB article below and have changed both the recovery.customization.Timeout and the recovery.powerOn.Timeoutto to 900 seconds.

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1031107

Despite this when I run a test I am still getting the error Error: Timed out waiting for VMware Tools after 300 seconds for several machines.

I've restarted the services on both sites and even rebooted the servers in both sites and the error persists. I'm fairly certain this is cosmetic, SRM isn't waiting 15 minutes for operations to complete.

What am I missing?