Alliance iS HPLC System Empower control panel shows "Unable to Connect" and no communication with Alliance iS - WKB281830

SYMPTOMS

• Empower control panel in Run Samples is unavailable; message "Alliance iS Unable to Connect. Please check network cables and configuration"
  
• Unable to launch an analysis (instrument failure)
• Windows system event viewer error after a reboot: The WatersNGINXInstrumentService service failed to start due to the following error: 
  The service did not respond to the start or control request in a timely fashion

ENVIRONMENT

• Empower 3 Enterprise
• Alliance iS HPLC System 1.1 ICS
• 80 port is open on the LAC/E and between the LAC/E and the Citrix server

CAUSE

Windows service WatersNGINXInstrumentService not started on the LAC/E event if set to Startup type Automatic

FIX or WORKAROUND

Start the Windows service WatersNGINXInstrumentService on the LAC/E.

ADDITIONAL INFORMATION

Optional: If the service fails to start after each reboot of the LAC/E, change the Windows Service Startup type to Automatic (Delayed Start).

Description of the service: Waters NGINX Instrument Service responsible for ICS LAC/E reverse proxy management