Solved - Office Online Server Issues - Deploying and SSL/TLS Validation

Bruce Farrar 1 Reputation point
2021-04-18T22:07:46.973+00:00

Two major issues seem to be resolved and I hope this helps others.
When deploying New-OfficeWebAppsFarm on Office Online Server or Office Web Apps Server fails with:

Faulting application name: microsoft.office.web.agentmanager.exe, version: 16.0.10360.20000, time stamp: 0x5eba11c5 Faulting module name: KERNELBASE.dll, version: 10.0.14393.3986, time stamp: 0x5f77fd5b

Try adding registry key "HKLM\SYSTEM\CurrentControlSet\services\eventlog\Microsoft Office Web Apps" because in our case, the key could not be located.

When getting the following SSL/TLS validation errors:
ExcelServicesWfeWatchdog reported status for ExcelServicesWfe in category 'WfeHealth'. Reported status: Got CommunicationException when running WFE watchdog health test: System.ServiceModel.Security.SecurityNegotiationException: Could not establish trust relationship for the SSL/TLS secure channel with authority ...... System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.

Recreate your SSL certificate to include the machine FQDN name in the secondary alternative name (SAN) field of the certificate.

Microsoft Office Online Server
Microsoft Office Online Server
Microsoft on-premises server product that runs Office Online. Previously known as Office Web Apps Server.
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