Unable to log in via Nx Cloud while local login works

Minh Nguyen

June 15, 2026 02:13

Hello Support Team,

We are experiencing an issue with Nx Cloud login.

Problem description:
- Users cannot log in to the system via Nx Cloud.
- Local login using the server IP address works normally.
- The issue occurs on multiple devices, including laptops and mobile phones.
- The same devices can connect to other Nx systems without any issue.
- The server is accessible locally and the system appears to be operating normally.

Troubleshooting performed:
- Restarted Nx Server and Nx Client.
- Tested from different devices and networks (LAN and 5G).
- Verified that local login by IP address works correctly.
- Enabled Verbose Logging and collected client logs.
Could you please help investigate this issue?

Thank you.

0

• 

  Ichiro

  • Network Optix team

  June 15, 2026 08:24 Edited

  After reviewing the log, it is potential due to the repeating DNS resolution failures, which are causing connection issues with the Nx Cloud service endpoints:
   

  2026-06-12 18:05:21.535   2380 VERBOSE nx::network::SystemResolver(0x24d7db7c030): Resolve of ap-southeast-1.mediator.vmsproxy.com on DNS failed with result No such host is known.  
  2026-06-12 18:07:38.469    92c VERBOSE nx::network::SystemResolver(0x1dd9cddf330): Resolve of nxvms.com on DNS failed with result No such host is known.  
  2026-06-12 18:09:50.322   17d4 VERBOSE nx::network::SystemResolver(0x2716b03ca80): Resolve of tools.vmsproxy.com on DNS failed with result No such host is known.  
  2026-06-12 18:09:50.324   17d4 VERBOSE nx::network::SystemResolver(0x2716b03ca80): Resolve of tools-eu.vmsproxy.com on DNS failed with result No such host is known.  
  2026-06-12 18:13:37.970   17d4 VERBOSE nx::network::SystemResolver(0x2716b03ca80): Resolve of nxvms.com on DNS failed with result No such host is known.  
  2026-06-12 18:13:37.970   2e4c   DEBUG nx::network::http::AsyncClient(0x2717ad773f0): Failed to establish TCP connection to https://nxvms.com:443/discovery/v2/cloud_modules.xml. No such host is known.  

   
  Please refer to the firewall passlist that lists all the cloud service URLs. 
  In general, the services list in the file should be accessible from both the server and the client for a stable cloud connection:
  https://support.networkoptix.com/hc/en-us/articles/360010795813-Allowing-Nx-Cloud-traffic-through-a-firewall
   

  0

Please sign in to leave a comment.