Indeed, from the output of the curl command, it seems 443 isn't open.
Hence irrespective of FQDN or IP Address being used, the site pairing will fail as this is not a DNS issue but a port blocked issue.
Is this local HCX supposed to use a Proxy Server. In that case, even if you open port 443 on the firewall for a Direct Connection, but HCX will ignore that and will try to send the traffic to the Proxy instead.
Also, after making any changes performed on HCX, kindly restart app and web service via hcx:9443 URL & then check the issue
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Original Message:
Sent: Sep 05, 2024 06:21 AM
From: 9990374530
Subject: Unable to Site Pair
Do you think if it could be due to necessary ports that needs to be open for communication. For HCX, ports 443 (HTTPS) and 4500 (IPsec).
Original Message:
Sent: Sep 05, 2024 05:24 AM
From: Christopher Dooks
Subject: Unable to Site Pair
That looks to be an underlay reachability issue, where the Connector cannot reach the HCX Cloud Manager.
Original Message:
Sent: Sep 04, 2024 11:48 AM
From: 9990374530
Subject: Unable to Site Pair

We have Fortigate which is the outbound router , but as long as the traffic is flowing through the SSTP VPN tunnel, that Fortigate should be transparent
Original Message:
Sent: Sep 04, 2024 11:15 AM
From: Christopher Dooks
Subject: Unable to Site Pair
How is the connectivity between Connector and AVS Manager? Any kind of inspection/firewall in place which could be impacting the traffic flow? Port 443 allowed?
Original Message:
Sent: Sep 04, 2024 11:12 AM
From: 9990374530
Subject: Unable to Site Pair
Version : 4.8.2.0
Original Message:
Sent: Sep 04, 2024 10:55 AM
From: Christopher Dooks
Subject: Unable to Site Pair
Ah apologies, I misread.
With AVS, you get given a public URL to connect to. Do you know what version of HCX is deployed in AVS?
https://learn.microsoft.com/en-us/azure/azure-vmware/configure-vmware-hcx
Original Message:
Sent: Sep 04, 2024 10:39 AM
From: 9990374530
Subject: Unable to Site Pair
I believe this article will need to follow once I do the HCX site pairing from on premise HCX connector to cloud HCX manager?
Original Message:
Sent: Sep 04, 2024 10:32 AM
From: Christopher Dooks
Subject: Unable to Site Pair
Did you follow this article?
https://learn.microsoft.com/en-us/azure/azure-vmware/enable-hcx-access-over-internet
Original Message:
Sent: Sep 04, 2024 10:31 AM
From: 9990374530
Subject: Unable to Site Pair
I need to make this setup configure over internet.
Original Message:
Sent: Sep 04, 2024 10:22 AM
From: Christopher Dooks
Subject: Unable to Site Pair
What is the connectivity between source and destination? Is it over ExpressRoute? Or are you trying to configure it over the public internet?
Original Message:
Sent: Sep 04, 2024 10:20 AM
From: 9990374530
Subject: Unable to Site Pair
any suggestions would be appreciated.
Tried with different browser.
When I tried to ping cloud HCX from hcx connector getting packet filtered response
From x.x.x.x icmp_seq=3 Packet filtered
Maybe if I dont set up Under Resolution Address select either the Public IP address or the Private IP, like we do in VMC on AWS?