I’m just putting together this short post more for my own benefit more than anyone else’s. This has happened to me a few times, so I wanted to document it down somewhere so I don’t forget it again.

After deploying HCX within VMC on AWS, I am unable to access the public HCX Manager URL.

After speaking with the VMC on AWS support team, they informed me that I needed to add a Firewall entry to the Management Gateway Firewall.

The rule configuration was as follows:

• Name: HCX External Access (you can name this whatever you wish)
• Sources: ANY
• Destinations: HCX (this is a predefined entry)
• Services: HTTPS (TCP 443), ICMP (Echo Request)
• Action: Allow

Once the Firewall rule was published, I was able to access HCX Manager. Hopefully, they’ll automate this process in the future or add it to the documentation somewhere.