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Small and medium business | Business Central, N...
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Issue: Business Central On-Premises (BC210) - Server Not Found Error

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Environment:


  • Windows Server 2022 Standard

  • Business Central Version: BC60908W1 21

Error Description:

I have installed Business Central 21 (BC210) on-premises using different installation options (Demo, Custom, etc.), but I keep encountering the following error when trying to access the web client:

A server was not found at "http://localhost:7085/BC210/Service". Either the URL is incorrect or the server is currently not available.

The Event Viewer logs show:

 
Microsoft.Dynamics.Nav.Types.NavServerNotFoundException: A server was not found at "http://localhost:7085/BC210/Service".
System.Net.WebSockets.WebSocketException (0x80004005): The server returned status code '500' when status code '101' was expected.
 

Troubleshooting Steps Taken:

 

  1. Checked if the BC Server Instance is running:

    • Get-NAVServerInstance (PowerShell) confirms the instance is running.
    • Verified in Business Central Administration Console.

  2. Checked Port Availability:

    • Used Test-NetConnection -ComputerName localhost -Port 7085 (port is open). 

    •  
  3. Checked BC Services:

    • Microsoft Dynamics 365 Business Central Server [BC210] service is running. 

    •  
  4. Checked Event Viewer Logs:

    • Found multiple errors related to WebSockets 

  5. Tried Reinstalling Business Central with different installation options (Demo, Custom).
  6. Questions & Help Needed:

  • Has anyone faced a similar issue on Windows Server 2022 with BC21?

  • Is there any additional configuration needed for WebSockets or BC WebClient?

  • Could it be an IIS or SSL binding issue?


  •  

Any guidance or troubleshooting suggestions would be greatly appreciated! 



 
Screenshot 2025-03-19 094241.png
Screenshot 2025-03-19 094336.png
I have the same question (0)
  • Gerardo Rentería García Profile Picture
    25,910 Most Valuable Professional on at
    Hi
    Are you trying to access the BC page from the same server where the BC service and IIS are installed?
    I hope this can help you, and give you some hints.
    Best
    GR
  • Suggested answer
    Khushbu Rajvi. Profile Picture
    22,281 Super User 2026 Season 1 on at

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