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Connecting to the View Connection server fails with the error: A secure connection to the server '(null)' cannot be established (1038334)

Symptoms

Cannot connect to the View Connection server that is behind a firewall
Connecting to the View Connection server that is behind a firewall fails
You see the error:

The View Connection Server authentication failed. A secure connection to the server '(null)' cannot be established.
You see this error after you enter your log in credentials in the View Logon screen
You do not experience this issue when the View Connection server is in your local network, without an intervening firewall

view-client-connection-issues

Cause

The View Connection server is configured to use the Secure Tunnel connection to the desktop. This requires that the firewall allow port 443 to be open. If the firewall does not allow communication on port 443, the connection between the Client and Connection Server cannot be established.

The same error may also be displayed if an invalid port is defined in the External URL.

Resolution

To resolve this issue, try one of these options:

Disable secure tunneling on the View Connection Server behind the firewall .

To disable secure tunneling:
1. In the View Admin portal, navigate to View Configuration > Servers.
2. Click the Connection Server.
3. Click the General tab.
4. Under HTTP(S) Secure Tunnel, deselect Use Secure Tunnel connection to desktop.
Open ports on the firewall to allow communication between the Client and Connection server. Port 80 and 443 are used to connect Client and Connection servers.

For a complete list of ports used in VMware View, see:
- Network connectivity requirements for VMware View Manager 4.5 and later (1027217)
- TCP and UDP Ports required to access vCenter Server, ESX hosts, and other network components (1012382)

Update History

04/25/2012 - Updated to include View Manager 4.6 and 5.0.

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