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Connection Refused

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Posted on by Microsoft Employee

Hi

I am receiving the error message "The request to create a reliable session has been refused by RM Destination.  Server net.tcp://navsrv:7046/DynamicsNAV/Service is too busy to process this request.  Try again later.  The channel could not be opened."

Background : Users start login at 9am, Everything is running fine.  At about 11am, there are 80 users connected and working fine, now for new login attempt the above error pops up.  After about 15-20 minutes its resolved auto.  But this is happening every now and then which is an issue we are without clue.

Can you share any idea please. 

Version : NAV 2009 R2 (3 tiers installation)

CC users: 100

SQL Server 2009R2 Std

Server environment Virtualised - VMWare

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  • Community Member Profile Picture
    Community Member Microsoft Employee on at
    RE: Connection Refused

    Thank you very much.  i did not know this and was facing problem for last 3 months.

    CP

  • Verified answer
    Mohana Yadav Profile Picture
    Mohana Yadav 60,062 Super User 2025 Season 1 on at
    RE: Connection Refused

    Yes, Microsoft Dynamics NAV Server Instances

  • Verified answer
    Community Member Profile Picture
    Community Member Microsoft Employee on at
    RE: Connection Refused

    You mean NAV application service ?  This is single service for all users.  

  • Suggested answer
    Mohana Yadav Profile Picture
    Mohana Yadav 60,062 Super User 2025 Season 1 on at
    RE: Connection Refused

    How many services do you have?

    To get better performance use only 30-40 users on single servicetier..

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