IIS application pools stopped frequently with error code 0x80070426 ? Need advise to resolve this . Please help me.

Raja 1 Reputation point

Our application installed on IIS version 10.0 & Windows server 2016.

It is build using asp.net. Application pools are getting stopped frequently. Not one app pool, this is happening for all app pools.
When we try to start & recycle IIS application pool also stop/start ISS also not helping. Its throwing below error. Application pools are configured with machine account.

Cannot Start application pool.

There was an error while performing this operation.
The Service has not been started error 0x80070426 (Exception from HResult 0x80070426.

Event Viewer:
A Process serving application pool AAA terminated unexpectedly. The Process id was '53376'. The process exit code was 0xffffffff.

What I have tried:

I tried reset of IIS but it is not helpful. Same error is throwing after IIS reset.
Also I have stopped and started application pool. But it is not allowing me to stop/start because it is throwing same error.

If I restart the server Application pool is started working.
As a workaround I am restarting the server whenever we get this application pool stopped issue.

Internet Information Services
Windows Server 2016
Windows Server 2016
A Microsoft server operating system that supports enterprise-level management updated to data storage.
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A set of technologies in the .NET Framework for building web applications and XML web services.
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Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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  1. Yurong Dai-MSFT 2,811 Reputation points Microsoft Vendor

    Hi @Raja ,

    I think your problem requires using a debugging tool (such as IIS Debug Diagnostics) and taking a dump of the process to see why it's crashing. See this article How to use the Debug Diagnostic Tool to troubleshoot a process that has stopped responding in IIS.

    In addtion, If you can, I suggest you'd better open a support ticket via: https://support.microsoft.com, because they will analyze the dump file for you more professionally to solve your problem.

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    Best regards,
    Yurong Dai

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