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Session Id : v/3Nt5dMPRhjyQR33k6qog
Dynamics 365 Community / Forums / Customer experience | Sales, Customer Insights,... / The following error wa...
Customer experience | Sales, Customer Insights,...
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The following error was encountered during logging in to D365. I am not sure what the reason was.

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Posted on 16 Mar 2025 11:18:37 by Stone Huang 432
https://dev.XXXXXX.com/_common/error/errorhandler.aspx?BackUri=https://adfs.XXXXXX.com/&ErrorCode=0x80040216&Parm0=
Error Details: Could not acquire Write lock in time 180000 milliseconds. Lock mode: Write. Lock name: MASTER_SITE_MAP: {XXXXXXXX-25ad-44f0-800c-1497337d5bb8}1033&RequestUri=/main.aspx&user_lcid=1033
 
Does anyone know why?
Categories:
Microsoft Dynamics CRM
  • Stone Huang Profile Picture
    Stone Huang 432 on 16 Mar 2025 at 13:57:12
    The following error was encountered during logging in to D365. I am not sure what the reason was.
    Hi Holly,
     
    Thanks for your reply, I found out the cause of this problem，It was because the D365 I built locally could not find the correct IP address. I turned off the Internet network card in the virtual machine's dual network card and only kept the connection to another virtual machine.
     
    I just didn't understand why this would happen if I had configured the ip address in my virtual machine's host file.
  • Suggested answer
    Holly Huffman Profile Picture
    Holly Huffman 3,180 on 16 Mar 2025 at 12:57:57
    The following error was encountered during logging in to D365. I am not sure what the reason was.
    Hi there! Good morning, evening, or afternoon - depending on where you are :) Hope you are well today! 
     
    The error message indicates that Dynamics 365 encountered a timeout while trying to acquire a write lock on the MASTER_SITE_MAP. This issue can arise due to several reasons, such as:
    • High Server Load: If the server is under heavy load, it may struggle to process requests in a timely manner. This could be caused by high CPU or memory usage, possibly from other processes running on the server.
    • Database Locking: The error suggests a locking issue in the database. This could happen if multiple processes are trying to access or modify the same resource simultaneously, leading to contention.
    • Configuration or Deployment Issues: If there have been recent updates or changes to the system, such as a CRM update or deployment, it might have caused inconsistencies or locking issues.
    Suggested Steps to Resolve:
    • Check Server Performance: Monitor the server's CPU, memory, and disk usage to ensure it’s not overloaded. Address any performance bottlenecks.
    • Review Recent Changes: If there were recent updates or deployments, ensure that all components (server, database, etc.) are fully updated and configured correctly.
    • Restart Services: Restarting the Dynamics 365 services or the server itself can sometimes resolve transient locking issues.
    • Database Maintenance: Check for any locks in the database and release them if necessary. Ensure regular database maintenance tasks are being performed.
    • Consult Logs: Review the event logs and trace files for more detailed information about what might be causing the issue.

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