A Process serving application pool'DefaultAppPool' suffered a fatal communication error with the windows process activation service. The process ID was '5184'. The data field contains the error codes

Sunny Sharma 1 Reputation point
2023-07-20T13:14:43.1833333+00:00

We have a VB6 web application hosted on windows server 2019 with IIS 10. Every week on thursday the server goes down in production with error "A Process serving application pool 'DefaultAppPool' suffered a fatal communication error with the windows process activation service. The process ID was '5184'. The data field contains the error codes". have anyone encountered this issue. It's quite strange that it's only happening on that specific day and we have checked the there are no batch jobs runs which could be causing this.

Windows Server 2019
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