I can run the connectivity check just fine. Just fyi these switches are in Access Gateway mode.
I can't get SAN Health to accept any name for the Fabric. So I can't pass the pre-flight check
Please make sure you are using the latest SAN Health, 4.0.3, available at http://brocade.com/sanhealth.
Any time SAN Health rejects a fabric name it will give the reason in the onscreen log. Look there for the reason. If you still have problems, send the log and relevant screenshots to email@example.com and we will look into the issue.