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Office Online Server-Office Online Server Service will not start after install

Question
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Hello,
I was pointed here from the MS Community Personnel (Arck Tang MSFT):
My Issue is below and I do not know which forum is best suited for this
I have installed Office Online Server 2016 and after the installation completes, the Office Online Service will not start.
When I try to restart it, I get a pop-up:
The Office Online service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other services or programs.
The service is set to start using Local System. I have changed this to a Local Admin account and still the same pop-up.
In the event logs this is the only error that shows for this:
Service cannot be started. System.TypeInitializationException: The type initializer for 'Microsoft.Office.Web.Common.ServiceInstanceFinder' threw an exception. ---> Microsoft.Office.Web.Common.OfficeServiceException: ServiceInstanceFinderAdapter did not return data on first request ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
I have tried a repair of the install and uninstall/reinstall with no luck.
If you have any pointers or can provide any assistance, it would be greatly appreciated.
Jeff Curtis
Friday, June 19, 2020 12:18 AM
Answers
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I'd try asking for help over here.
https://social.technet.microsoft.com/Forums/en-US/home?forum=OfficeOnlineServer
Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows Server] Datacenter Management
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.- Proposed as answer by Guido Franzke Monday, June 22, 2020 6:46 AM
- Marked as answer by Guido Franzke Friday, June 26, 2020 6:16 AM
Friday, June 19, 2020 12:27 AM
All replies
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I'd try asking for help over here.
https://social.technet.microsoft.com/Forums/en-US/home?forum=OfficeOnlineServer
Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows Server] Datacenter Management
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.- Proposed as answer by Guido Franzke Monday, June 22, 2020 6:46 AM
- Marked as answer by Guido Franzke Friday, June 26, 2020 6:16 AM
Friday, June 19, 2020 12:27 AM -
Thanks DaveFriday, June 19, 2020 4:04 PM
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You're welcome.
Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows Server] Datacenter Management
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees, and confers no rights.Friday, June 19, 2020 4:24 PM