SDDC Manager UI displays a 404 page inaccessible error after successful login.

Products

• VMware SDDC Manager

Issue/Introduction

After entering valid credentials and successfully authenticating to the SDDC Manager UI via its IP or FQDN, you are immediately redirected to a page that results in a 404 or page not accessible error.

The browser's URL changes from the FQDN/IP to the appliance's shortname during the failed page load.

Environment

SDDC Manager

Cause

The SDDC Manager appliance is configured internally with its shortname as the system hostname. Following a successful login, the UI redirects the session to this configured hostname. If the network environment's DNS is not configured to resolve shortnames, the browser cannot find the host, leading to a 404 page load failure.

Resolution

Update the SDDC Manager appliance's system hostname to use its FQDN.

1. Log in to the SDDC Manager appliance as the vcf user via SSH, then su to root.
2. Set the hostname to the correct FQDN using the following command:
   
   nmctl set-hostname <sddc-manager-fqdn>
   
   
3. Reboot the appliance for the change to take effect:
   
   reboot now
   
   
4. After the appliance has rebooted, accessing the SDDC Manager UI should function correctly, as the post-authentication redirect will now use the resolvable FQDN.

Additional Information

For more information on using the nmctl command, you can refer to the official VMware Photon OS documentation: Using the Network Configuration Manager