Hi, would it be possible to bring up a new AADConnect server and see if the problem continues?
You could do a swing migration and export/import the current config and it wouldnt disrupt the existing server:
[https://learn.microsoft.com/en-us/azure/active-directory/hybrid/how-to-upgrade-previous-version#swing-migrationhttps://learn.microsoft.com/en-us/azure/active-directory/hybrid/how-to-upgrade-previous-version#swing-migration
[https://learn.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-import-export-confighttps://learn.microsoft.com/en-us/azure/active-directory/hybrid/how-to-connect-import-export-config