I am setting up a 2008 Windows Failover Cluster with VMWare. When I run the validation test, it fails on "Validate Windows Firewall Configuration" with the following error:
"An error occurred while executing the test.
There was an error verifying the firewall configuration.
An item with the same key has already been added."
To troubleshoot this, I tried to completely disable the firewall.
I found this website, where the author ran into the same issue, in a very similar configuration: http://geekcroft.wordpress.com/2010/01/29/cluster-firewall-issue-an-item-with-the-same-key-has-already-been-added/
The author suggests that the issue is a duplicate NIC GUID (due to using VMWare) of some kind and advises adding a new NIC.
Is there any way to manually change this GUID?
Unfortunately, adding another NIC is not possible because this version of VMWare is apparently limited to 5 virtual PCI slots. Currently all are occupied (2 SCSI cards and 3 NICs).
To get around this, I tried removing one of the NICs from the VM Settings and then re-adding it, hoping that it would detect it as a new NIC, but Windows immediately redetects it as the same NIC and assigns all of the original IPs, etc to it.
I also tried manually editing the VMX file for one of the nodes to completely change the MAC address, yet VMWare still somehow just assigns the old IP information to the NICs, even though they have new MAC addresses.
Assuming there is no easy way to manually change the GUID, is there way to get VMWare to recognize a NIC as new, since changing the MACs doesn't seem to do the trick?