Microsoft Dynamics NAV (Archived)

Connection Lost Error in Dynamics NAV 2016

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Posted on by Roduma

Hi All,

Can somebody help me?

I'm using Microsoft Dynamics NAV 2016,

a couple days ago we got a problem connection lost. as like on that picture, we tried to restart Server and also restart Server Instance but it doesn't solve yet.

you know it was so annoying when you focus on your work but it lost suddenly :( .

Needs Help!

Thank you All,

Duma

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Suresh Kulla 43,745 on at

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RE: Connection Lost Error in Dynamics NAV 2016

I am referring to the service Account. Your event viewer is not clear, please re-attach.
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RockwithNav 6,562 on at

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RE: Connection Lost Error in Dynamics NAV 2016

20 minutes of session timeout seems OK to me, the screenshot that you sent of event log is not clear to me, cab you just let me know whats the error logged??
Roduma 15 on at

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RE: Connection Lost Error in Dynamics NAV 2016

Hi Olister,

I Got It...

This is it and we never changed / edited anything in there since go live.

I dunno if there's another company has a case like this, Bc I so confused and sometimes it's run normally but sometimes it was drive our user get crazy. I couldn't find and analyze this cases pattern and even could't to replicate it.

webconfig.txt

Best Regards w/ Thanks,

Duma
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Olister Rumao 3,957 on at

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RE: Connection Lost Error in Dynamics NAV 2016

Hi Duma,

In your VM where NAV server is installed goto C:\inetpub\wwwroot\<ServerInstanceName>.

You will find a web.config file something like this.

You have to check the session timeout in this file.

You will need to change this parameter and restart the WebServerInstance from IIS.
Roduma 15 on at

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RE: Connection Lost Error in Dynamics NAV 2016

Hi Suresh..

Did you meant Service User (RTC) that look like picture's on bellow??

or which where's service user did you mean?

Best Regards,

Duma
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Suresh Kulla 43,745 on at

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RE: Connection Lost Error in Dynamics NAV 2016

Duma,

I am referring to the service user which is running the NAV Service, not the user which is trying to login.
Roduma 15 on at

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RE: Connection Lost Error in Dynamics NAV 2016

hy suresh...

I appreciate you respond,

Btw we didn't set any password on user client bc we are using user domain,

[View:/cfs-file/__key/communityserver-discussions-components-files/34/ClientUserSettings.config_2D00_indah.txt]

here's I enclosed about user config and event viewer.

Thankyou,

Duma
Roduma 15 on at

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RE: Connection Lost Error in Dynamics NAV 2016

hi Olister...

I appreciate your respond

I enclose idle client 10 seconds, and we've been set like this since 2017 and there's no issue but now it's time out under 4 seconds. and if we operate it directly from remot server it doesn't happen.
Roduma 15 on at

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RE: Connection Lost Error in Dynamics NAV 2016

Hi Rock..

My appreciate your respond, this in I enclose about event Viewer.

fyi when I remot server and then run NAV in there it didn't happened and I dunno why.
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Suresh Kulla 43,745 on at

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RE: Connection Lost Error in Dynamics NAV 2016

Please check the event viewer log. I ran across these kinds of issues when the service user is locked or the password is expired, so please make to check the Service user is enabled and active.